Servicewomen march during a rehearsal for the Independence Day military parade in central Kiev, Ukraine on August 20, 2018. (Photo by Gleb Garanich/Reuters)

Arctic wolves in their new enclosure in the wildlife park in Hanau, Germany, 10 February 2015. The pack is one of the park's main attractions, which specializes in local and European breeds. (Photo by Boris Roessler/EPA)

A man sits on a park bench in a flooded park as the Cape Fear River rises above its usual height in Wilmington, North Carolina, September 14, 2018. (Photo by Jonathan Drake/Reuters)

The town hall with the Mangia tower is seen in Siena, central Italy, January 29, 2016. (Photo by Max Rossi/Reuters)

People take photos with the skyline of the central business district in Singapore on September 10, 2015. (Photo by Edgar Su/Reuters)

A junk boat sails in to dock as a woman sits on the pier in the central district of Hong Kong on May 15, 2019. (Photo by Isaac Lawrence/AFP Photo)

Customers ride escalators at a shopping mall in central Moscow, Russia on March 2, 2019. (Photo by Mladen Antonov/AFP Photo)

A duck swims in a Osterbekkanal during a the rainy autumn afternoon, central Hamburg, Germany 20 November 2017. (Photo by Srdjan Suki/EPA/EFE)