Robert Lewandowski of Poland in action against Cristian Romero (R) of Argentina during the FIFA World Cup Qatar 2022 Group C match between Poland and Argentina at Stadium 974 on November 30, 2022 in Doha, Qatar. (Photo by Amanda Perobelli/Reuters)

Stunning silhouettes under European cities reveal the size and splendor of the continent’s urban foundations. Photographer and content-manager Anna Arinova, 28, from Moscow, captured the awe-inspiring labyrinths in Russia and Germany. Here: Regenwurmlager, Poland. The Regenwurmlager is an extensive underground fortification area constructed by Germany in 1920s-1940s, now in western Poland, near the city of Międzyrzecz. (Photo by Anna Arinova/Caters News)

A Netherlands fan with his face painted is seen in the stand before the match against Poland during UEFA Nations League action at PGE Narodowy in Warsaw, Poland on September 22, 2022. (Photo by Kacper Pempel/Reuters)

A German special anti-tank gun is ready to fire during the army maneuvers in Silesia, Poland, on September 22, 1928. (Photo by AP Photo)

Children enjoy a sledge ride past ice swimming fans at the Zalew Zegrzynski lake in Nieporet, Poland, Sunday, February 25, 2018. A cold wave hit Poland with the temperature minus 8 degree Celsius (17.6 Fahrenheit) during the day and dropping to minus 16 degree Celsius (3.2 Fahrenheit) in the night in central Poland. (Photo by Alik Keplicz/AP Photo)