To an outsider, their passion is at times illegal and often on the verge of life and death. But climbing rooftops of high-rise buildings and exploring abandoned facilities is in the blood of these young Muscovites. The small group calls itself “Rudex”, which stands for “roof and decay exploration”, and is akin a Western youth craze known as urbex or “urban exploration” of man-made structures. Here: Urban explorer Vad Him of Rudex team jumps whilst on a rooftop in Moscow, Russia, August 14, 2017. (Photo by Maxim Shemetov/Reuters)

Two white storks stand close to each other on their nest on a tree in Zerbolo, Italy, Thursday, October 26, 2017. (Photo by Antonio Calanni/AP Photo)

A women attends a class at a driving school in Kabul August 17, 2014. Kabul is one of the world's fastest growing cities and its streets are increasingly blocked by cars and buses. In the city's private driving schools, students pay a $60 fee for a 45-day course, which includes oral and practical driving tests at the country's Traffic Department. Some of the women who have signed up say learning to drive is a way to escape unwanted gazes and physical harassment on the cramped, crowded minibuses that are often the only method of urban public transport. (Photo by Mohammad Ismail/Reuters)

A woman walks inside a building in downtown Havana, Cuba April 21, 2016. (Photo by Alexandre Meneghini/Reuters)

Participants dance and climb on an art installation as approximately 70,000 people from all over the world gather for the 30th annual Burning Man arts and music festival in the Black Rock Desert of Nevada, U.S. August 31, 2016. (Photo by Jim Urquhart/Reuters)

Aerial view of people circling around bonfires to celebrate the Torch Festival on Axilixi Prairie on July 20, 2024 in Bijie, Guizhou Province of China. (Photo by Luo Dafu/VCG via Getty Images)

Sunrise over the River Thames and Tower Bridge in London today morning on January 28, 2024. It has been forecast that Sahara dust will be in the atmosphere. (Photo by Alister Gooding/Picture Exclusive)

Indigenous men perfom the “Danza del Parachicos” (Parachicos dance) to honor the Lord of Esquipulas during a pilgrimage in the municipality of Chiapa de Corzo, Mexico, 15 January 2024. (Photo by Carlos López/EPA)