A combination photo shows German Chancellor Angela Merkel and her husband Joachim Sauer arriving for the annual Wagner opera festival in Bayreuth, Germany, between July 25, 2000 (top left) and July 25, 2021 (bottom right). REUTERS/Reuters Photographers

Prime Minister of Saxony Michael Kretschmer and his wife Annett Hofmann attend the annual Wagner opera festival in Bayreuth, Germany, July 25, 2021. REUTERS/Andreas Gebert

State Minister for Digitalization Dorothee Baer and her husband Oliver attend the annual Wagner opera festival in Bayreuth, Germany, July 25, 2021. REUTERS/Andreas Gebert

German Chancellor Angela Merkel and her husband Joachim Sauer arrive for the annual Wagner opera festival in Bayreuth, Germany July 25, 2021. REUTERS/Andreas Gebert

Bavarian State Premier Markus Soeder and his wife Karin attend the annual Wagner opera festival in Bayreuth, Germany, July 25, 2021. REUTERS/Andreas Gebert

Bavarian State Premier Markus Soeder and his wife Karin attend the annual Wagner opera festival in Bayreuth, Germany, July 25, 2021. REUTERS/Andreas Gebert

Bavarian State Premier Markus Soeder and his wife Karin attend the annual Wagner opera festival in Bayreuth, Germany, July 25, 2021. REUTERS/Andreas Gebert

Bavarian State Premier Markus Soeder and his wife Karin attend the annual Wagner opera festival in Bayreuth, Germany, July 25, 2021. REUTERS/Andreas Gebert

Bavarian State Premier Markus Soeder and his wife Karin attend the annual Wagner opera festival in Bayreuth, Germany, July 25, 2021. REUTERS/Andreas Gebert

Bavarian State Premier Markus Soeder and his wife Karin attend the annual Wagner opera festival in Bayreuth, Germany, July 25, 2021. REUTERS/Andreas Gebert

German Chancellor Angela Merkel and her husband Joachim Sauer speak with Bavarian State Premier Markus Soeder with his wife Karin as they arrive for the annual Wagner opera festival in Bayreuth, Germany July 25, 2021. REUTERS/Andreas Gebert

Bavarian State Premier Markus Soeder and his wife Karin attend the annual Wagner opera festival in Bayreuth, Germany, July 25, 2021. REUTERS/Andreas Gebert

German Chancellor Angela Merkel and her husband Joachim Sauer speak with Bavarian State Premier Markus Soeder with his wife Karin as they arrive for the annual Wagner opera festival in Bayreuth, Germany July 25, 2021. REUTERS/Andreas Gebert

German Chancellor Angela Merkel and her husband Joachim Sauer pose as they arrive for the annual Wagner opera festival in Bayreuth, Germany July 25, 2021. REUTERS/Andreas Gebert

German Chancellor Angela Merkel and her husband Joachim Sauer arrive for the annual Wagner opera festival in Bayreuth, Germany July 25, 2021. REUTERS/Andreas Gebert

German Chancellor Angela Merkel and her husband Joachim Sauer arrive for the annual Wagner opera festival in Bayreuth, Germany July 25, 2021. REUTERS/Andreas Gebert

German Chancellor Angela Merkel and her husband Joachim Sauer pose next to Bavarian State Premier Markus Soeder with his wife Karin as they arrive for the annual Wagner opera festival in Bayreuth, Germany July 25, 2021. REUTERS/Andreas Gebert

A shadow is cast as a hot air balloon prepares to land in a residential area during the New Jersey Lottery Festival of Ballooning in Flemington, New Jersey, U.S., July 24, 2021. REUTERS/Hannah Beier

A hot air balloon lands in a residential area during the New Jersey Lottery Festival of Ballooning in Flemington, New Jersey, U.S., July 24, 2021. REUTERS/Hannah Beier

People wait for the hot air balloons to take flight during the New Jersey Lottery Festival of Ballooning in Readington, New Jersey, U.S., July 24, 2021. REUTERS/Hannah Beier

A hot air balloon lands in a residential area during the New Jersey Lottery Festival of Ballooning in Flemington, New Jersey, U.S., July 24, 2021. REUTERS/Hannah Beier

A hot air balloon prepares to land in a residential area during the New Jersey Lottery Festival of Ballooning in Flemington, New Jersey, U.S., July 24, 2021. REUTERS/Hannah Beier

A hot air balloon prepares to land in a residential area during the New Jersey Lottery Festival of Ballooning in Flemington, New Jersey, U.S., July 24, 2021. REUTERS/Hannah Beier

People watch hot air balloon rides during the New Jersey Lottery Festival of Ballooning in Readington, New Jersey, U.S., July 24, 2021. REUTERS/Hannah Beier

People enjoy a balloon ride during the New Jersey Lottery Festival of Ballooning in Readington, New Jersey, U.S., July 24, 2021. REUTERS/Hannah Beier

A boy plays with a toy hot air balloon during the New Jersey Lottery Festival of Ballooning in Readington, New Jersey, U.S., July 24, 2021. REUTERS/Hannah Beier

People enjoy a balloon ride during the New Jersey Lottery Festival of Ballooning in Readington, New Jersey, U.S., July 24, 2021. REUTERS/Hannah Beier

People enjoy a balloon ride during the New Jersey Lottery Festival of Ballooning in Readington, New Jersey, U.S., July 24, 2021. REUTERS/Hannah Beier

A hot air balloon is packed away after a flight during the New Jersey Lottery Festival of Ballooning in Flemington, New Jersey, U.S., July 24, 2021. REUTERS/Hannah Beier

People watch the hot air balloons take off during the New Jersey Lottery Festival of Ballooning in Readington, New Jersey, U.S., July 24, 2021. REUTERS/Hannah Beier

People enjoy a balloon ride during the New Jersey Lottery Festival of Ballooning in Readington, New Jersey, U.S., July 24, 2021. REUTERS/Hannah Beier

People enjoy a balloon ride during the New Jersey Lottery Festival of Ballooning in Readington, New Jersey, U.S., July 24, 2021. REUTERS/Hannah Beier TPX IMAGES OF THE DAY

Hot air balloons are inflated during the New Jersey Lottery Festival of Ballooning in Readington, New Jersey, U.S., July 24, 2021. REUTERS/Hannah Beier

People enjoy a balloon ride during the New Jersey Lottery Festival of Ballooning in Readington, New Jersey, U.S., July 24, 2021. REUTERS/Hannah Beier

A woman helps to inflate a hot air balloon during the New Jersey Lottery Festival of Ballooning in Readington, New Jersey, U.S., July 24, 2021. REUTERS/Hannah Beier

People enjoy a balloon ride during the New Jersey Lottery Festival of Ballooning in Readington, New Jersey, U.S., July 24, 2021. REUTERS/Hannah Beier

A hot air balloon is seen during the New Jersey Lottery Festival of Ballooning in Readington, New Jersey, U.S., July 24, 2021. REUTERS/Hannah Beier

Hot air balloons are inflated during the New Jersey Lottery Festival of Ballooning in Readington, New Jersey, U.S., July 24, 2021. REUTERS/Hannah Beier

Hot air balloons are inflated during the New Jersey Lottery Festival of Ballooning in Readington, New Jersey, U.S., July 24, 2021. REUTERS/Hannah Beier

People enjoy a balloon ride during the New Jersey Lottery Festival of Ballooning in Readington, New Jersey, U.S., July 24, 2021. REUTERS/Hannah Beier

People enjoy a balloon ride during the New Jersey Lottery Festival of Ballooning in Readington, New Jersey, U.S., July 24, 2021. REUTERS/Hannah Beier

People enjoy a balloon ride during the New Jersey Lottery Festival of Ballooning in Readington, New Jersey, U.S., July 24, 2021. REUTERS/Hannah Beier

Festivalgoers watch Wolf Alice perform at Latitude Festival at Henham Park, Britain, July 23, 2021. REUTERS/Peter Cziborra

Festivalgoers watch Wolf Alice perform at Latitude Festival at Henham Park, Britain, July 23, 2021. REUTERS/Peter Cziborra

Festivalgoers watch Wolf Alice perform at Latitude Festival at Henham Park, Britain, July 23, 2021. REUTERS/Peter Cziborra

Festivalgoers watch Wolf Alice perform at Latitude Festival at Henham Park, Britain, July 23, 2021. REUTERS/Peter Cziborra

Festivalgoers watch Wolf Alice perform at Latitude Festival at Henham Park, Britain, July 23, 2021. REUTERS/Peter Cziborra

Festivalgoers watch Wolf Alice perform at Latitude Festival at Henham Park, Britain, July 23, 2021. REUTERS/Peter Cziborra

Festivalgoers watch Wolf Alice perform at Latitude Festival at Henham Park, Britain, July 23, 2021. REUTERS/Peter Cziborra

Festivalgoers watch Mabel perform at Latitude Festival at Henham Park, Britain, July 23, 2021. REUTERS/Peter Cziborra

Festivalgoers watch Mabel perform at Latitude Festival at Henham Park, Britain, July 23, 2021. REUTERS/Peter Cziborra

Festivalgoers watch Mabel perform at Latitude Festival at Henham Park, Britain, July 23, 2021. REUTERS/Peter Cziborra

Festivalgoers watch Mabel perform at Latitude Festival at Henham Park, Britain, July 23, 2021. REUTERS/Peter Cziborra

Festivalgoers watch Declan McKenna perform at Latitude Festival at Henham Park, Britain, July 23, 2021. REUTERS/Peter Cziborra

A festivalgoer takes a picture as they watch Declan McKenna perform at Latitude Festival at Henham Park, Britain, July 23, 2021. REUTERS/Peter Cziborra

Festivalgoers watch Declan McKenna perform at Latitude Festival at Henham Park, Britain, July 23, 2021. REUTERS/Peter Cziborra

Festivalgoers watch Declan McKenna perform at Latitude Festival at Henham Park, Britain, July 23, 2021. REUTERS/Peter Cziborra

Festivalgoers watch Declan McKenna perform at Latitude Festival at Henham Park, Britain, July 23, 2021. REUTERS/Peter Cziborra