Four-man bicycle is powered by five chains and has brakes on both its wheels, 1948. The bike was built by Art Rothschild (top position) who broke three ribs while learning how to ride it. (Photo by Wallace Kirkland/Time & Life Pictures)

Dafna Ben Nun with the Emperor penguins. Heres the brilliant picture of a cheeky baby penguin playfully winking at a photographer. The adorable snap was taken while a group of mischievous chicks were playing with their parents. (Photo by Dafna Ben Nun/Caters News)

TV Personality Courtney Stodden attends OK! Magazine's pre-GRAMMY event at Avalon Hollywood on February 9, 2017 in Los Angeles, California. (Photo by Splash News and Pictures)

Scared of Heights. “Taken from the highest residential building in Asia: the Zenith in Busan. This was taken with official permission (which took me months to get) and safety measures were taken. I had to hang myself over the edge to get this shot. Not for the faint of heart! But when you’re at a height like this, the world below you just seems different. It takes away the fear one would normally have, and gives a sense of peace instead”. (Photo by Albert Dros/NatGeo Cities Travel Photographer of the Year 2017)

«After Presents», 1996. Siri Kaur: “I was 14 when Simran was born in 1990. We have different mothers, so we grew up separately and I made pictures with her whenever I saw her. The work of Sally Mann and Nan Goldin gave me permission to see my family as a valid art subject. This image shows the aftermath of Christmas morning. Simran is unselfconsciously lounging on the floor, melding into her beloved dog”. (Photo by Siri Kaur)

Amazing gravity-defying photo manipulations by Ravshaniya, a photographer from Uzbekistan, teeters on the edge of levitation. Photo: Untitled. (Photo by Ravshaniya)