Spacewalker Mark Vande Hei took his own photograph during the first spacewalk of 2018, on January 23, 2018. These sky-high pictures are better known as “space-selfies”. (Photo by Mark Vande Hei/NASA)

Czech Republic's Jakub Mensik celebrates after winning the men's singles quarter-final match against Russia's Andrey Rublev at the ATP Qatar Open tennis tournament in Doha on February 22, 2024. (Photo by Karim Jaafar/AFP Photo)

Bangladeshi artists wear floral attire as they join celebrations of the spring festival “Basanta Utsav” at the Faculty of Fine Arts of the University of Dhaka, in Bangladesh, 14 February 2024. The Bashanta Utshab, or Spring Festival, is a local traditional festival which marks the beginning of the Spring Season while young people also celebrate it along with Valentine's Day. (Photo by Monirul Alam/EPA/EFE)

“The Victoria Falls or Mosi-oa-Tunya is a waterfall located in southern Africa on the Zambezi River between the countries of Zambia and Zimbabwe. A famous feature is a naturally formed pool known as the Devil's Pool, near the edge of the falls, accessed via Livingstone Island in Zambia. When the river flow is at a certain level, usually during the months of September to December, a rock barrier forms a pool with little current; some people swim in the pool. Occasional deaths have been reported when people slip over the edge of the rock barrier”. – Wikipedia

Photo: Devil's Pool – Victoria Falls, Zambia. (Photo by Siena College Study Abroad)

A fireman from the London Fire Brigade, wearing a smoke helmet. (Photo by Topical Press Agency/Getty Images). Circa 1908

A young man “painting” the Eiffel Tower. (Photo by Keystone/Getty Images). 9th May 1970

Actor Robert De Niro presents the Guy Movie Hall of Fame award onstage during Spike TV's 5th annual 2011 “Guys Choice” Awards at Sony Pictures Studios on June 4, 2011 in Culver City, California. (Photo by Kevin Winter/Getty Images)

Two children jumping through a water hydrant's shower on a New York street. They have come from a neighbouring co-educational playgroup organised by the city's Police Department. (Photo by Orlando/Getty Images). 1950