Thomas Krueger, dressed as NVA major, speaks to participants of the 'reality event' one night at the 'Bunker-Museum' in Rennsteighoehe near the eastern city of Ilmenau October 12, 2013. The museum is a former East German bunker, built in the 1970s to shelter the district's command unit in an emergency. The 3,600-square-meter bunker now offers visitors the chance to stay there overnight as part of a historical "reality experience". Depending on the size of their group, guests can pay 109 euros each for a 16-hour stay, during which they wear National People's Army (NVA) uniform and are treated as former East German soldiers for a night. Picture taken October 12, 2013. REUTERS/Ina Fassbender (GERMANY - Tags: TRAVEL MILITARY SOCIETY)

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The hands of Thomas Krueger dressed as NVA major are pictured, while he speaks to participants of the 'reality event' one night at the 'Bunker-Museum' in Rennsteighoehe near the eastern city of Ilmenau October 12, 2013. The museum is a former East German bunker, built in the 1970s to shelter the district's command unit in an emergency. The 3,600-square-meter bunker now offers visitors the chance to stay there overnight as part of a historical "reality experience". Depending on the size of their group, guests can pay 109 euros each for a 16-hour stay, during which they wear National People's Army (NVA) uniform and are treated as former East German soldiers for a night. Picture taken October 12, 2013 REUTERS/Ina Fassbender (GERMANY - Tags: TRAVEL MILITARY SOCIETY)

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A flag of the former DDR (abbreviation of former East Germany) is pictured at the 'Bunker-Museum' in Rennsteighoehe near the eastern city of Ilmenau October 12, 2013. The museum is a former East German bunker, built in the 1970s to shelter the district's command unit in an emergency. The 3,600-square-meter bunker now offers visitors the chance to stay there overnight as part of a historical "reality experience". Depending on the size of their group, guests can pay 109 euros each for a 16-hour stay, during which they wear National People's Army (NVA) uniform and are treated as former East German soldiers for a night. Picture taken October 12, 2013 REUTERS/Ina Fassbender (GERMANY - Tags: TRAVEL MILITARY SOCIETY)

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Guests dressed as NVA (Nationale Volksarmee) soldiers arrive for their event night at the 'Bunker-Museum' in Rennsteighoehe near the eastern city of Ilmenau October 12, 2013. The museum is a former East German bunker, built in the 1970s to shelter the district's command unit in an emergency. The 3,600-square-meter bunker now offers visitors the chance to stay there overnight as part of a historical "reality experience". Depending on the size of their group, guests can pay 109 euros each for a 16-hour stay, during which they wear National People's Army (NVA) uniform and are treated as former East German soldiers for a night. Picture taken October 12, 2013 REUTERS/Ina Fassbender (GERMANY - Tags: TRAVEL MILITARY SOCIETY)

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Thomas Krueger dressed as NVA major talks to his guests at their arrival for one night at the 'Bunker-Museum' in Rennsteighoehe near the eastern city of Ilmenau October 12, 2013. The museum is a former East German bunker, built in the 1970s to shelter the district's command unit in an emergency. The 3,600-square-meter bunker now offers visitors the chance to stay there overnight as part of a historical "reality experience". Depending on the size of their group, guests can pay 109 euros each for a 16-hour stay, during which they wear National People's Army (NVA) uniform and are treated as former East German soldiers for a night. Picture taken October 12, 2013 REUTERS/Ina Fassbender (GERMANY - Tags: TRAVEL MILITARY SOCIETY)

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Thomas Krueger dressed as NVA major talks to his guests at their arrival for one night at the 'Bunker-Museum' in Rennsteighoehe near the eastern city of Ilmenau October 12, 2013. The museum is a former East German bunker, built in the 1970s to shelter the district's command unit in an emergency. The 3,600-square-meter bunker now offers visitors the chance to stay there overnight as part of a historical "reality experience". Depending on the size of their group, guests can pay 109 euros each for a 16-hour stay, during which they wear National People's Army (NVA) uniform and are treated as former East German soldiers for a night. Picture taken October 12, 2013 REUTERS/Ina Fassbender (GERMANY - Tags: TRAVEL MILITARY SOCIETY)

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The former NVA identity card of Hans-Georg Tiede before the 'reality event' one night at the 'Bunker-Museum' in Rennsteighoehe near the eastern city of Ilmenau October 12, 2013. The museum is a former East German bunker, built in the 1970s to shelter the district's command unit in an emergency. The 3,600-square-meter bunker now offers visitors the chance to stay there overnight as part of a historical "reality experience". Depending on the size of their group, guests can pay 109 euros each for a 16-hour stay, during which they wear National People's Army (NVA) uniform and are treated as former East German soldiers for a night. Picture taken October 12, 2013 REUTERS/Ina Fassbender (GERMANY - Tags: TRAVEL MILITARY SOCIETY)

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65 year-old Hans-Georg Tiede presents his original identity mark of the former DDR at his arrival for one night at the 'Bunker-Museum' in Rennsteighoehe near the eastern city of Ilmenau October 12, 2013. The museum is a former East German bunker, built in the 1970s to shelter the district's command unit in an emergency. The 3,600-square-meter bunker now offers visitors the chance to stay there overnight as part of a historical "reality experience". Depending on the size of their group, guests can pay 109 euros each for a 16-hour stay, during which they wear National People's Army (NVA) uniform and are treated as former East German soldiers for a night. Picture taken October 12, 2013 REUTERS/Ina Fassbender (GERMANY - Tags: TRAVEL MILITARY SOCIETY)

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Family Hoppmann poses in the sleeping room of the 'Bunker-Museum' in Rennsteighoehe near the eastern city of Ilmenau October 12, 2013. The museum is a former East German bunker, built in the 1970s to shelter the district's command unit in an emergency. The 3,600-square-meter bunker now offers visitors the chance to stay there overnight as part of a historical "reality experience". Depending on the size of their group, guests can pay 109 euros each for a 16-hour stay, during which they wear National People's Army (NVA) uniform and are treated as former East German soldiers for a night. Picture taken October 12, 2013 REUTERS/Ina Fassbender (GERMANY - Tags: TRAVEL MILITARY SOCIETY)

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37 year-old Andrea Friebe, who works as fitness coach, dressed in a NVA soldier uniform, poses during her 'reality event' at the 'Bunker-Museum' in Rennsteighoehe near the eastern city of Ilmenau October 12, 2013. The museum is a former East German bunker, built in the 1970s to shelter the district's command unit in an emergency. The 3,600-square-meter bunker now offers visitors the chance to stay there overnight as part of a historical "reality experience". Depending on the size of their group, guests can pay 109 euros each for a 16-hour stay, during which they wear National People's Army (NVA) uniform and are treated as former East German soldiers for a night. Picture taken October 12, 2013. REUTERS/Ina Fassbender (GERMANY - Tags: TRAVEL MILITARY SOCIETY)

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Participants dressed as NVA soldiers look at weapons during the 'reality event' one night at the 'Bunker-Museum' in Rennsteighoehe near the eastern city of Ilmenau October 12, 2013. The museum is a former East German bunker, built in the 1970s to shelter the district's command unit in an emergency. The 3,600-square-meter bunker now offers visitors the chance to stay there overnight as part of a historical "reality experience". Depending on the size of their group, guests can pay 109 euros each for a 16-hour stay, during which they wear National People's Army (NVA) uniform and are treated as former East German soldiers for a night. Picture taken October 12, 2013. REUTERS/Ina Fassbender (GERMANY - Tags: TRAVEL MILITARY SOCIETY)

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A couple dressed as NVA soldiers look at photos at the 'Bunker-Museum' in Rennsteighoehe near the eastern city of Ilmenau October 12, 2013. The museum is a former East German bunker, built in the 1970s to shelter the district's command unit in an emergency. The 3,600-square-meter bunker now offers visitors the chance to stay there overnight as part of a historical "reality experience". Depending on the size of their group, guests can pay 109 euros each for a 16-hour stay, during which they wear National People's Army (NVA) uniform and are treated as former East German soldiers for a night. Picture taken October 12, 2013. REUTERS/Ina Fassbender (GERMANY - Tags: TRAVEL MILITARY SOCIETY)

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A Trabant car is pictured at the 'Bunker-Museum' in Rennsteighoehe near the eastern city of Ilmenau October 12, 2013. The museum is a former East German bunker, built in the 1970s to shelter the district's command unit in an emergency. The 3,600-square-meter bunker now offers visitors the chance to stay there overnight as part of a historical "reality experience". Depending on the size of their group, guests can pay 109 euros each for a 16-hour stay, during which they wear National People's Army (NVA) uniform and are treated as former East German soldiers for a night. Picture taken October 12, 2013. REUTERS/Ina Fassbender (GERMANY - Tags: TRAVEL MILITARY SOCIETY TRANSPORT)

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Headphones and a NVA helmet are seen on a styrofoam head at the 'Bunker-Museum' in Rennsteighoehe near the eastern city of Ilmenau October 12, 2013. The museum is a former East German bunker, built in the 1970s to shelter the district's command unit in an emergency. The 3,600-square-meter bunker now offers visitors the chance to stay there overnight as part of a historical "reality experience". Depending on the size of their group, guests can pay 109 euros each for a 16-hour stay, during which they wear National People's Army (NVA) uniform and are treated as former East German soldiers for a night. Picture taken October 12, 2013 REUTERS/Ina Fassbender (GERMANY - Tags: TRAVEL MILITARY SOCIETY)

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A dummy sits at a table with typewriters at the 'Bunker-Museum' in Rennsteighoehe near the eastern city of Ilmenau October 12, 2013. The museum is a former East German bunker, built in the 1970s to shelter the district's command unit in an emergency. The 3,600-square-meter bunker now offers visitors the chance to stay there overnight as part of a historical "reality experience". Depending on the size of their group, guests can pay 109 euros each for a 16-hour stay, during which they wear National People's Army (NVA) uniform and are treated as former East German soldiers for a night. Picture taken October 12, 2013. REUTERS/Ina Fassbender (GERMANY - Tags: TRAVEL MILITARY SOCIETY)
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A couple dressed as NVA soldiers look at photos at the 'Bunker-Museum' in Rennsteighoehe near the eastern city of Ilmenau October 12, 2013. The museum is a former East German bunker, built in the 1970s to shelter the district's command unit in an emergency. The 3,600-square-meter bunker now offers visitors the chance to stay there overnight as part of a historical "reality experience". Depending on the size of their group, guests can pay 109 euros each for a 16-hour stay, during which they wear National People's Army (NVA) uniform and are treated as former East German soldiers for a night. Picture taken October 12, 2013. REUTERS/Ina Fassbender (GERMANY - Tags: TRAVEL MILITARY SOCIETY)

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The telephone exchange room is pictured at the 'Bunker-Museum' in Rennsteighoehe near the eastern city of Ilmenau October 12, 2013. The museum is a former East German bunker, built in the 1970s to shelter the district's command unit in an emergency. The 3,600-square-meter bunker now offers visitors the chance to stay there overnight as part of a historical "reality experience". Depending on the size of their group, guests can pay 109 euros each for a 16-hour stay, during which they wear National People's Army (NVA) uniform and are treated as former East German soldiers for a night. Picture taken October 12, 2013. REUTERS/Ina Fassbender (GERMANY - Tags: TRAVEL MILITARY SOCIETY)

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An overall against chemical weapons is pictured at the 'Bunker-Museum' in Rennsteighoehe near the eastern city of Ilmenau October 12, 2013. The museum is a former East German bunker, built in the 1970s to shelter the district's command unit in an emergency. The 3,600-square-meter bunker now offers visitors the chance to stay there overnight as part of a historical "reality experience". Depending on the size of their group, guests can pay 109 euros each for a 16-hour stay, during which they wear National People's Army (NVA) uniform and are treated as former East German soldiers for a night. Picture taken October 12, 2013. REUTERS/Ina Fassbender (GERMANY - Tags: TRAVEL MILITARY SOCIETY)

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A paper with text written on it that reads "Dear friends of the bunker. We are happy that you are here tonight" is seen during the 'reality event' one night at the 'Bunker-Museum' in Rennsteighoehe near the eastern city of Ilmenau October 12, 2013. The museum is a former East German bunker, built in the 1970s to shelter the district's command unit in an emergency. The 3,600-square-meter bunker now offers visitors the chance to stay there overnight as part of a historical "reality experience". Depending on the size of their group, guests can pay 109 euros each for a 16-hour stay, during which they wear National People's Army (NVA) uniform and are treated as former East German soldiers for a night. Picture taken October 12, 2013. REUTERS/Ina Fassbender (GERMANY - Tags: TRAVEL MILITARY SOCIETY)

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A photo of former DDR (abbreviation of former East Germany) leader Erich Honecker is pictured at the 'Bunker-Museum' in Rennsteighoehe near the eastern city of Ilmenau October 12, 2013. The museum is a former East German bunker, built in the 1970s to shelter the district's command unit in an emergency. The 3,600-square-meter bunker now offers visitors the chance to stay there overnight as part of a historical "reality experience". Depending on the size of their group, guests can pay 109 euros each for a 16-hour stay, during which they wear National People's Army (NVA) uniform and are treated as former East German soldiers for a night. Picture taken October 12, 2013. REUTERS/Ina Fassbender (GERMANY - Tags: TRAVEL MILITARY SOCIETY POLITICS)

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Glass tubes to control the contamination of the chemical poison Sarin is seen at the 'Bunker-Museum' in Rennsteighoehe near the eastern city of Ilmenau October 12, 2013. The museum is a former East German bunker, built in the 1970s to shelter the district's command unit in an emergency. The 3,600-square-meter bunker now offers visitors the chance to stay there overnight as part of a historical "reality experience". Depending on the size of their group, guests can pay 109 euros each for a 16-hour stay, during which they wear National People's Army (NVA) uniform and are treated as former East German soldiers for a night. Picture taken October 12, 2013. REUTERS/Ina Fassbender (GERMANY - Tags: TRAVEL MILITARY SOCIETY)

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A dining room is pictured at the 'Bunker-Museum' in Rennsteighoehe near the eastern city of Ilmenau October 12, 2013. The museum is a former East German bunker, built in the 1970s to shelter the district's command unit in an emergency. The 3,600-square-meter bunker now offers visitors the chance to stay there overnight as part of a historical "reality experience". Depending on the size of their group, guests can pay 109 euros each for a 16-hour stay, during which they wear National People's Army (NVA) uniform and are treated as former East German soldiers for a night. Picture taken October 12, 2013. REUTERS/Ina Fassbender (GERMANY - Tags: TRAVEL MILITARY SOCIETY)

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Thomas Krueger, dressed as NVA major, waits for participants for an appeal during the 'reality event' one night at the 'Bunker-Museum' in Rennsteighoehe near the eastern city of Ilmenau October 12, 2013. The museum is a former East German bunker, built in the 1970s to shelter the district's command unit in an emergency. The 3,600-square-meter bunker now offers visitors the chance to stay there overnight as part of a historical "reality experience". Depending on the size of their group, guests can pay 109 euros each for a 16-hour stay, during which they wear National People's Army (NVA) uniform and are treated as former East German soldiers for a night. Picture taken October 12, 2013. REUTERS/Ina Fassbender (GERMANY - Tags: TRAVEL MILITARY SOCIETY)

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A combination picture showing various canned food (L to R top row) a can with whole meal bread, tomato sauce for school kitchens and original cans with goulash of pork (L to R bottom row) tins of NVA soup, sign of the former Republic DDR and various cans with different labels all with filled sausages is seen at the 'Bunker-Museum' in Rennsteighoehe near the eastern city of Ilmenau October 12, 2013. The museum is a former East German bunker, built in the 1970s to shelter the district's command unit in an emergency. The 3,600-square-meter bunker now offers visitors the chance to stay there overnight as part of a historical "reality experience". Depending on the size of their group, guests can pay 109 euros each for a 16-hour stay, during which they wear National People's Army (NVA) uniform and are treated as former East German soldiers for a night. Picture taken October 12, 2013. REUTERS/Ina Fassbender (GERMANY - Tags: TRAVEL MILITARY SOCIETY)

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Woman dressed in NVA soldier uniforms prepare the dinner during the 'reality event' for one night at the 'Bunker-Museum' in Rennsteighoehe near the eastern city of Ilmenau October 12, 2013. The museum is a former East German bunker, built in the 1970s to shelter the district's command unit in an emergency. The 3,600-square-meter bunker now offers visitors the chance to stay there overnight as part of a historical "reality experience". Depending on the size of their group, guests can pay 109 euros each for a 16-hour stay, during which they wear National People's Army (NVA) uniform and are treated as former East German soldiers for a night. Picture taken October 12, 2013. REUTERS/Ina Fassbender (GERMANY - Tags: TRAVEL MILITARY SOCIETY)

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Members of the Hoppmann family wear gas masks during the 'reality event' one night at the 'Bunker-Museum' in Rennsteighoehe near the eastern city of Ilmenau October 12, 2013. The museum is a former East German bunker, built in the 1970s to shelter the district's command unit in an emergency. The 3,600-square-meter bunker now offers visitors the chance to stay there overnight as part of a historical "reality experience". Depending on the size of their group, guests can pay 109 euros each for a 16-hour stay, during which they wear National People's Army (NVA) uniform and are treated as former East German soldiers for a night. Picture taken October 12, 2013. REUTERS/Ina Fassbender (GERMANY - Tags: TRAVEL MILITARY SOCIETY)

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Marco, dressed as NVA officer, inspects the bunker during the 'reality event' one night at the 'Bunker-Museum' in Rennsteighoehe near the eastern city of Ilmenau October 12, 2013. The museum is a former East German bunker, built in the 1970s to shelter the district's command unit in an emergency. The 3,600-square-meter bunker now offers visitors the chance to stay there overnight as part of a historical "reality experience". Depending on the size of their group, guests can pay 109 euros each for a 16-hour stay, during which they wear National People's Army (NVA) uniform and are treated as former East German soldiers for a night. Picture taken October 12, 2013. REUTERS/Ina Fassbender (GERMANY - Tags: TRAVEL MILITARY SOCIETY)

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65 year-old Hans-Georg Tiede wears a gas mask during the 'reality event' one night at the 'Bunker-Museum' in Rennsteighoehe near the eastern city of Ilmenau October 12, 2013. The museum is a former East German bunker, built in the 1970s to shelter the district's command unit in an emergency. The 3,600-square-meter bunker now offers visitors the chance to stay there overnight as part of a historical "reality experience". Depending on the size of their group, guests can pay 109 euros each for a 16-hour stay, during which they wear National People's Army (NVA) uniform and are treated as former East German soldiers for a night. Picture taken October 12, 2013. REUTERS/Ina Fassbender (GERMANY - Tags: TRAVEL MILITARY SOCIETY)

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A man dressed as NVA officer watches over people during the 'reality event' one night at the 'Bunker-Museum' in Rennsteighoehe near the eastern city of Ilmenau October 12, 2013. The museum is a former East German bunker, built in the 1970s to shelter the district's command unit in an emergency. The 3,600-square-meter bunker now offers visitors the chance to stay there overnight as part of a historical "reality experience". Depending on the size of their group, guests can pay 109 euros each for a 16-hour stay, during which they wear National People's Army (NVA) uniform and are treated as former East German soldiers for a night. Picture taken October 12, 2013. REUTERS/Ina Fassbender (GERMANY - Tags: TRAVEL MILITARY SOCIETY)

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A man dressed as a NVA officer watches participants of the 'reality event' one night at the 'Bunker-Museum' in Rennsteighoehe near the eastern city of Ilmenau October 12, 2013. The museum is a former East German bunker, built in the 1970s to shelter the district's command unit in an emergency. The 3,600-square-meter bunker now offers visitors the chance to stay there overnight as part of a historical "reality experience". Depending on the size of their group, guests can pay 109 euros each for a 16-hour stay, during which they wear National People's Army (NVA) uniform and are treated as former East German soldiers for a night. Picture taken October 12, 2013. REUTERS/Ina Fassbender (GERMANY - Tags: TRAVEL MILITARY SOCIETY)

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A man dressed as NVA major talks to the participants of the 'reality event' one night at the 'Bunker-Museum' in Rennsteighoehe near the eastern city of Ilmenau October 12, 2013. The museum is a former East German bunker, built in the 1970s to shelter the district's command unit in an emergency. The 3,600-square-meter bunker now offers visitors the chance to stay there overnight as part of a historical "reality experience". Depending on the size of their group, guests can pay 109 euros each for a 16-hour stay, during which they wear National People's Army (NVA) uniform and are treated as former East German soldiers for a night. Picture taken October 12, 2013. REUTERS/Ina Fassbender (GERMANY - Tags: TRAVEL MILITARY SOCIETY)

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Participants listen to their major during the 'reality event' one night at the 'Bunker-Museum' in Rennsteighoehe near the eastern city of Ilmenau October 12, 2013. The museum is a former East German bunker, built in the 1970s to shelter the district's command unit in an emergency. The 3,600-square-meter bunker now offers visitors the chance to stay there overnight as part of a historical "reality experience". Depending on the size of their group, guests can pay 109 euros each for a 16-hour stay, during which they wear National People's Army (NVA) uniform and are treated as former East German soldiers for a night. Picture taken October 12, 2013. REUTERS/Ina Fassbender (GERMANY - Tags: TRAVEL MILITARY SOCIETY)

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Thomas Krueger dressed as a NVA major waits outside the 'Bunker-Museum' in Rennsteighoehe near the eastern city of Ilmenau October 12, 2013. The museum is a former East German bunker, built in the 1970s to shelter the district's command unit in an emergency. The 3,600-square-meter bunker now offers visitors the chance to stay there overnight as part of a historical "reality experience". Depending on the size of their group, guests can pay 109 euros each for a 16-hour stay, during which they wear National People's Army (NVA) uniform and are treated as former East German soldiers for a night. Picture taken October 12, 2013. REUTERS/Ina Fassbender (GERMANY - Tags: TRAVEL MILITARY SOCIETY)

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Participants of the 'reality event' one night sleep in a room of the 'Bunker-Museum' in Rennsteighoehe near the eastern city of Ilmenau October 12, 2013. The museum is a former East German bunker, built in the 1970s to shelter the district's command unit in an emergency. The 3,600-square-meter bunker now offers visitors the chance to stay there overnight as part of a historical "reality experience". Depending on the size of their group, guests can pay 109 euros each for a 16-hour stay, during which they wear National People's Army (NVA) uniform and are treated as former East German soldiers for a night. Picture taken October 12, 2013. REUTERS/Ina Fassbender (GERMANY - Tags: TRAVEL MILITARY SOCIETY)

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