Shoppers wearing protective face masks stroll at Naschmarkt flea market as the global coronavirus disease (COVID-19) outbreak continues in Vienna, Austria, September 19, 2020. REUTERS/Lisi Niesner

Shoppers wearing protective face masks stroll at Naschmarkt flea market as the global coronavirus disease (COVID-19) outbreak continues in Vienna, Austria, September 19, 2020. REUTERS/Lisi Niesner

Shoppers wearing protective face masks stroll at Naschmarkt flea market as the global coronavirus disease (COVID-19) outbreak continues in Vienna, Austria, September 19, 2020. REUTERS/Lisi Niesner

Pedestrians wearing protective face masks walk behind a COVID-19 information sign during the annual summer flea market as France reinforces mask-wearing as a part of efforts to curb a resurgence of the coronavirus disease (COVID-19) across the country, in Merville-Franceville-Plage, France, August 23, 2020. REUTERS/Charles Platiau

Pedestrians wearing protective face masks walk behind a COVID-19 information sign during the annual summer flea market as France reinforces mask-wearing as a part of efforts to curb a resurgence of the coronavirus disease (COVID-19) across the country, in Merville-Franceville-Plage, France, August 23, 2020. REUTERS/Charles Platiau

Pedestrians wearing protective face masks walk behind a COVID-19 information sign during the annual summer flea market as France reinforces mask-wearing as a part of efforts to curb a resurgence of the coronavirus disease (COVID-19) across the country, in Merville-Franceville-Plage, France, August 23, 2020. REUTERS/Charles Platiau

Pedestrians wearing protective face masks walk behind a COVID-19 information sign during the annual summer flea market as France reinforces mask-wearing as a part of efforts to curb a resurgence of the coronavirus disease (COVID-19) across the country, in Merville-Franceville-Plage, France, August 23, 2020. REUTERS/Charles Platiau

Pedestrians wearing protective face masks walk behind a COVID-19 information sign during the annual summer flea market as France reinforces mask-wearing as a part of efforts to curb a resurgence of the coronavirus disease (COVID-19) across the country, in Merville-Franceville-Plage, France, August 23, 2020. REUTERS/Charles Platiau

A board advertising a nationwide vote on constitutional changes is seen at a local flea market in Omsk, Russia June 13, 2020. The board reads: "July, 1. Our constitution". REUTERS/Alexey Malgavko

A man waits to start selling his goods outside a bank as the police (not pictured) does identity checks at an informal flea market managed mainly by unemployed people, amid the spread of the coronavirus disease (COVID-19) in Santiago, Chile May 29, 2020. The graffiti reads '(Chile's president Sebastian) Pinera has embezzled this bank' . REUTERS/Ivan Alvarado

A man sweeps the street in front of a graffiti next to an informal flea market managed mainly by unemployed people, amid the spread of the coronavirus disease (COVID-19) in Santiago, Chile May 29, 2020. REUTERS/Ivan Alvarado

Police officers check people at an informal flea market managed mainly by unemployed people, amid the spread of the coronavirus disease (COVID-19) in Santiago, Chile May 29, 2020. REUTERS/Ivan Alvarado

Police officers check an immigrant at an informal flea market managed mainly by unemployed people, amid the spread of the coronavirus disease (COVID-19) in Santiago, Chile May 29, 2020. REUTERS/Ivan Alvarado

Busts and statues portraying the late Chinese chairman Mao Zedong are seen at Panjiayuan flea market, following the novel coronavirus disease (COVID-19) outbreak, in Beijing, China May 19, 2020. REUTERS/Tingshu Wang

A vendor wearing a protective face mask on his chin is seen inside a shop near a portrait of the late Chinese chairman Mao Zedong at Panjiayuan flea market, following the novel coronavirus disease (COVID-19) outbreak, in Beijing, China May 19, 2020. REUTERS/Tingshu Wang TPX IMAGES OF THE DAY

A vendor is seen inside a shop as portraits of Sun Yat-sen and the late Chinese chairman Mao Zedong hang on the wall at Panjiayuan flea market, following the novel coronavirus disease (COVID-19) outbreak, in Beijing, China May 19, 2020. REUTERS/Tingshu Wang

Paintings portraying the late Chinese chairman Mao Zedong are seen at a closed shop at Panjiayuan flea market, following the novel coronavirus disease (COVID-19) outbreak, in Beijing, China May 19, 2020. REUTERS/Tingshu Wang

A vendor with a face mask on his chin sits near an illustration featuring late Chinese chairman Mao Zedong inside a shop at Panjiayuan flea market, following the novel coronavirus disease (COVID-19) outbreak, in Beijing, China May 19, 2020. REUTERS/Tingshu Wang

A vendor wearing a protective face mask waits for customers at a local flea market, as the spread of the coronavirus disease (COVID-19) continues, in Omsk, Russia March 28, 2020. REUTERS/Alexey Malgavko

A closed-down flea market near the U.S.-Mexico border is seen after a rule of not allowing more than 10 people in a building was announced in response to the coronavirus disease (COVID-19) in Laredo, Texas, U.S., March 20, 2020. Picture taken March 20, 2020. REUTERS/Veronica G. Cardenas u000d u000d

A bust of Soviet leader Josef Stalin is displayed for sale at a local flea market in the Siberian city of Omsk, Russia September 29, 2019. REUTERS/Alexey Malgavko

A vendor places a painting at a local flea market in the Siberian city of Omsk, Russia September 29, 2019. REUTERS/Alexey Malgavko

Watches and other goods are displayed for sale at a local flea market in the Siberian city of Omsk, Russia September 29, 2019. REUTERS/Alexey Malgavko

A vendor and a customer stand near goods, which are displayed for sale at a local flea market in the Siberian city of Omsk, Russia September 29, 2019. REUTERS/Alexey Malgavko

Goods are displayed for sale at a local flea market in the Siberian city of Omsk, Russia September 29, 2019. REUTERS/Alexey Malgavko

Clothes are displayed for sale at a local flea market in the Siberian city of Omsk, Russia September 29, 2019. REUTERS/Alexey Malgavko

An effigy of the fairy tale character Baba Yaga is seen inside a car at a local flea market in the Siberian city of Omsk, Russia September 29, 2019. REUTERS/Alexey Malgavko

Goods are displayed for sale at a local flea market in the Siberian city of Omsk, Russia September 29, 2019. REUTERS/Alexey Malgavko

Goods are displayed for sale at a local flea market in the Siberian city of Omsk, Russia September 29, 2019. REUTERS/Alexey Malgavko

A vendor displays used laptops for sale at a flea-market in Isa Town, south of Manama, Bahrain, July 6, 2019. REUTERS/ Hamad I Mohammed

A vendor talks on his phone as he sells used laptops at a flea-market in Isa Town, south of Manama, Bahrain, July 6, 2019. REUTERS/ Hamad I Mohammed

A model presents a creation by designer Christoph Rumpf, winner of the 34th Hyeres international fashion festival, during the show featuring fairy tales made from flea market finds in Berlin, Germany, July 1, 2019. REUTERS/Annegret Hilse

A model presents a creation by designer Christoph Rumpf, winner of the 34th Hyeres international fashion festival, during the show featuring fairy tales made from flea market finds in Berlin, Germany, July 1, 2019. REUTERS/Annegret Hilse

A model presents a creation by designer Christoph Rumpf, winner of the 34th Hyeres international fashion festival, during the show featuring fairy tales made from flea market finds in Berlin, Germany, July 1, 2019. REUTERS/Annegret Hilse

A model presents a creation by designer Christoph Rumpf, winner of the 34th Hyeres international fashion festival, during the show featuring fairy tales made from flea market finds in Berlin, Germany, July 1, 2019. REUTERS/Annegret Hilse

A model presents a creation by designer Christoph Rumpf, winner of the 34th Hyeres international fashion festival, during the show featuring fairy tales made from flea market finds in Berlin, Germany, July 1, 2019. REUTERS/Annegret Hilse

A model presents a creation by designer Christoph Rumpf, winner of the 34th Hyeres international fashion festival, during the show featuring fairy tales made from flea market finds in Berlin, Germany, July 1, 2019. REUTERS/Annegret Hilse

Busts and statues portraying late Chinese chairman Mao Zedong are seen at the Panjiayuan flea market in Beijing, China May 19, 2019. Picture taken May 19, 2019. REUTERS/Florence Lo

A man wearing a t-shirt with U.S. flag looks at a painting depicting South America independence leader Simon Bolivar at a flea market in Caracas, Venezuela April 14, 2019. REUTERS/Ivan Alvarado

Toys wheels are seen at a flea market on the outskirts of El Alto, La Paz, Bolivia March 3, 2019. Picture taken March 3, 2019. REUTERS/David Mercado

Electronic trash is seen at a flea market on the outskirts of El Alto, La Paz, Bolivia March 3, 2019. Picture taken March 3, 2019. REUTERS/David Mercado

Electronic remote controls are seen at a flea market on the outskirts of El Alto, La Paz, Bolivia March 3, 2019. Picture taken March 3, 2019. REUTERS/David Mercado

A worker carries a mattress on his head to deliver it to his customers at the flea market in Isa Town south of Manama, Bahrain, March 4, 2019. REUTERS/ Hamad I Mohammed

Dolls are displayed at a flea market in El Alto outskirts, La Paz, Bolivia, October 18, 2018. Picture taken October 18, 2018. REUTERS/David Mercado

Dolls are displayed at a flea market in El Alto outskirts, La Paz, Bolivia, October 18, 2018. Picture taken October 18, 2018. REUTERS/David Mercado

Second-hand sport shoes are displayed at a flea market in El Alto outskirts, La Paz, Bolivia, October 18, 2018. Picture taken October 18, 2018. REUTERS/David Mercado

Tyler Cassel removes belongings from a flea market damaged by Hurricane Michael in Panama City, Florida, U.S. October 11, 2018. REUTERS/Jonathan Bachman

Tyler Cassel walks in front of a flea market damaged by Hurricane Michael in Panama City, Florida, U.S. October 11, 2018. REUTERS/Jonathan Bachman

13-year-old Kaleb Cassel removes belongings from a flea market damaged by Hurricane Michael in Panama City, Florida, U.S. October 11, 2018. REUTERS/Jonathan Bachman

Sweden's Moderate party activists campaign are seen at a flea market in village Norrskedika, Sweden August 25, 2018. Picture taken August 25, 2018. REUTERS/Anna Ringstrom

Sweden's Democrats party activists campaign are seen at a flea market in village Norrskedika, Sweden August 25, 2018. Picture taken August 25, 2018. REUTERS/Anna Ringstrom

Sweden's Social Democrats party activists campaign are seen at a flea market in village Norrskedika, Sweden August 25, 2018. Picture taken August 25, 2018. REUTERS/Anna Ringstrom

A vendor sits surrounded by goods at the Udelnaya flea market in Saint Petersburg, Russia, July 4, 2018. The market, in the suburbs, is the biggest of the city. People come here to sell their belongings and people of Saint Petersburg arrive here to buy goods. As well as shooting all the matches, Reuters photographers are producing pictures showing their own quirky view from the sidelines of the World Cup. REUTERS/Max Rossi

Vendors are seen at the Udelnaya flea market in Saint Petersburg, Russia, July 4, 2018. The market, in the suburbs, is the biggest of the city. People come here to sell their belongings and people of Saint Petersburg arrive here to buy goods. As well as shooting all the matches, Reuters photographers are producing pictures showing their own quirky view from the sidelines of the World Cup. REUTERS/Max Rossi

People walk at the Udelnaya Flea Market in Saint Petersburg, Russia, July 4, 2018. The market, in the suburbs, is the biggest of the city. People come here to sell their belongings and people of Saint Petersburg arrive here to buy goods. As well as shooting all the matches, Reuters photographers are producing pictures showing their own quirky view from the sidelines of the World Cup. REUTERS/Max Rossi

People walk past second hand clothes at the Udelnaya Flea Market in Saint Petersburg, Russia, July 4, 2018. The market, in the suburbs, is the biggest of the city. People come here to sell their belongings and people of Saint Petersburg arrive here to buy goods. As well as shooting all the matches, Reuters photographers are producing pictures showing their own quirky view from the sidelines of the World Cup. REUTERS/Max Rossi

Women check second hand clothes at the Udelnaya Flea Market in Saint Petersburg, Russia, July 4, 2018. The market, in the suburbs, is the biggest of the city. People come here to sell their belongings and people of Saint Petersburg arrive here to buy goods. As well as shooting all the matches, Reuters photographers are producing pictures showing their own quirky view from the sidelines of the World Cup. REUTERS/Max Rossi

Clothes are displayed at the Udelnaya Flea Market in Saint Petersburg, Russia, July 4, 2018. The market, in the suburbs, is the biggest of the city. People come here to sell their belongings and people of Saint Petersburg arrive here to buy goods. As well as shooting all the matches, Reuters photographers are producing pictures showing their own quirky view from the sidelines of the World Cup. REUTERS/Max Rossi

People browse at the Udelnaya Flea Market in Saint Petersburg, Russia, July 4, 2018. The market, in the suburbs, is the biggest of the city. People come here to sell their belongings and people of Saint Petersburg arrive here to buy goods. As well as shooting all the matches, Reuters photographers are producing pictures showing their own quirky view from the sidelines of the World Cup. REUTERS/Max Rossi

Shoes are displayed at the Udelnaya Flea Market in Saint Petersburg, Russia, July 4, 2018. The market, in the subur, is the biggest of the city. People come here to sell their belongings and people of Saint Petersburg arrive here to buy goods. As well as shooting all the matches, Reuters photographers are producing pictures showing their own quirky view from the sidelines of the World Cup. REUTERS/Max Rossi