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 South African police officer speaks to residents of the densely populated Alexandra township east of Johannesburg Friday, March 27, 2020. (Photo by Jerome Delay/AP Photo)

A model presents a creation by LARHHA during the Code'41 Andalusian Fashion Week at the Amphitheatre of Italica in Seville on March 21, 2021. (Photo by Cristina Quicler/AFP Photo)

A livestock vendor gives bath to a bull at a cattle market ahead of the Muslim festival of Eid al-Adha, on the outskirts of Karachi on June 10, 2024. (Photo by Asif Hassan/AFP Photo)

A woman dressed in traditional Oromo costume attends a swearing ceremony of the newly named 72nd Borana Pastoralist chief, “Aba Gada” Guyo Wariyo in Arero, Ethiopia on March 9, 2025. (Photo by Tiksa Negeri/Reuters)

A view of Yarimoglu sinkhole (obruk), caused by some form of collapse of the surface layer in 2009, in Konya province, Turkiye on May 15, 2025. The gigantic pit formed between the fields where intensive irrigation activities are carried out is expanding and growing every year. (Photo by Abdullah Dogan/Anadolu via Getty Images)

Rosanna Davison attends the “Lambertz Monday Night” at Alter Wartesaal on February 1, 2012 in Cologne, Germany. (Photo by Andreas Rentz/Getty Images)