The adventurous explorers have snapped themselves in shark-infested waters, at the side of an active volcano, atop a Hong Kong skyscraper surrounded by toxic smog, and even perched on the top of iconic Rio statue of Christ the Redeemer. Here: Ervin Punkar using a selfie stick to take a photo from the very top of the 600ft TV tower in Tartu, Estonia. (Photo by Ervin Punkar/Caters News Agency)

A selection of winning images from the Pink Lady food photographer of the year awards. Here: On the phone – Fishes of Hilsa by Azim Khan Ronnie. (Photo by Azim Khan Ronnie/Pink Lady Food Photographer Award 2020)

Russian army soldiers, dressed in WWII era uniforms, march along the Red Square during a general rehearsal for the Victory Day military parade which will take place at Moscow's Red Square on May 9 to celebrate 70 years after the victory in WWII, in Moscow, Russia, Thursday, May 7, 2015. (Photo by Ivan Sekretarev/AP Photo)

North Koreans perform during the “Arirang” Mass Games at the May Day Stadium in Pyongyang, as part of celebrations ahead of the 60th anniversary marking the end of the 1950-53 Korean War, in this photo taken by Kyodo July 22, 2013. (Photo by KYODO)

Russian servicemen drive a partially covered T-14 Armata tank along a street before a rehearsal for the Victory Day parade in Moscow, Russia, April 29, 2015. Russia will celebrate the 70th anniversary of the victory over Nazi Germany in World War Two on May 9. (Photo by Maxim Zmeyev/Reuters)

A contestant holds three Pomeranians during the FCI-CACIB Zakarpattia 2021 International Dog Show at the Avanhard Stadium, Uzhhorod, Zakarpattia Region, western Ukraine on September 19, 2021. (Photo by Ukrinform/Rex Features/Shutterstock)

People look at smoke and flame rising from the Nevskaya Manufaktura textile factory founded by English merchant J. Thornton in 1841, in St. Petersburg, Russia, Monday, April 12, 2021. The emergencies ministry said the fire had broken out over several floors of the red-brick Nevskaya Manufaktura building on the Oktyabrskaya Embankment of the Neva River. (Photo by Dmitri Lovetsky/AP Photo)

Souvenirs seller smiles during the street market of the “2021 Agrorus” international agricultural fair at the Expoforum exhibition centre in St. Petersburg, Russia, 02 September 2021. The Exhibition opens for visitors until 05 September 2021. (Photo by Anatoly Maltsev/EPA/EFE)