Italian Air Force's aerobatic demonstration team, the Frecce Tricolori leave colourful vapour trails as they fly over the Altare della Patria monument on Republic Day (Festa della Repubblica) in Rome, Italy, 02 Jun 2017. The anniversary marks the founding of the Italian Republic in 1946. (Photo by Massimo Percossi/EPA)

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)

Salcomp players huddle at the center of the pitch of Arena da Amazonia after winning the Peladao amateur soccer tournament in Manaus, Brazil, Saturday, February 16, 2019. It is the team's second title, the first was in 2011. (Photo by Victor R. Caivano/AP Photo)

Players of the USA celebrate in the dressing room following their team's victory in the 2019 FIFA Women's World Cup France Final match between The United States of America and The Netherlands at Stade de Lyon on July 07, 2019 in Lyon, France. (Photo by Maddie Meyer – FIFA/FIFA via Getty Images)

Gold medalists Kikkan Randall and Jessica Diggins of the United States dancing during the medal ceremony for Cross-Country Skiing – Ladies' Team Sprint Free on day 13 of the PyeongChang 2018 Winter Olympic Games at Medal Plaza on February 22, 2018 in Pyeongchang-gun, South Korea. (Photo by Eric Gaillard/Reuters)

Women take part in the desert trek “Rose Trip Maroc”, on November 1, 2019 in the erg Chebbi near Merzouga. The Rose Trip Maroc is a female-oriented trek where teams of three must travel through the southern Moroccan Sahara desert with a compass, a map and a topographical reporter. (Photo by Jean-Philippe Ksiazek/AFP Photo)

Natalie Geisenberger of Germany, Johannes Ludwig of Germany, Tobias Wendl of Germany and Tobias Arlt of Germany celebrate their teammates slide winning gold during the Luge Team Relay on day six of the Beijing 2022 Winter Olympics at National Sliding Centre on February 10, 2022 in Yanqing, China. (Photo by Thomas Peter/Reuters)

Lea Meyer of Team Germany falls into the water obstacle during the Women’s 3000m Steeplechase heats on day two of the World Athletics Championships Oregon22 at Hayward Field on July 16, 2022 in Eugene, Oregon. (Photo by Martin Rickett/PA Wire Press Association)