A painter was drawing a lion head body painting on a model during the auto show on March 15, 2015. The local 2015 auto show was held in Xuchang Stadium in Xuchang, Henan Province, China. The exhibitors tried a variety of ways for promotion and attracting people's attention. Some exhibitors were giving gifts to the people scanning their QR codes and add them onto friends list. An auto company has invited young s*x underwear models and drew body paintings on the girls. (Photo by Xu Zhongxin/Sipa Asia)

“Himalayan Dog”. This dog just appeared out of nowhere and followed us for an entire week during our trekking trip in the Himalayan outback. He always used to sleep in front of our tent and guarded us in the nights. When I decided to get up at 4 a.m. to climb the next 5000 m peak for sunrise he accompanied me as well. On the top he was sitting for the entire 30 minutes on this place looking straight into the countryside. Photo location: Ladakh, India. (Photo and caption by Sebastian Wahlhuetter/National Geographic Photo Contest)

Wedges of an orange generate enough current and electrical juice – 3.5 volts – to power an LED. The fruit’s citric acid helps electrons flow from galvanized nails to copper wire in this 14-hour exposure. This image was published in September’s Visions of Earth, a trio of photos that appear in each issue of National Geographic. (Photo by Caleb Charland/National Geographic)

The knitted sculpture “William Tell” by Patricia Waller sits in the “Broken Heroes” exhibition at the Deschler Gallery on April 26, 2012 in Berlin, Germany. The exhibition of hand-crocheted comic, puppet and cartoon figures shows icons of pop culture in various unfortunate states. (Photo by Adam Berry)

The Chernobyl disaster was a catastrophic nuclear accident that occurred on 26 April 1986 at the Chernobyl Nuclear Power Plant in Ukraine, which was under the direct jurisdiction of the central authorities of the Soviet Union. The Chernobyl disaster is the worst nuclear power plant accident in history in terms of cost and resulting deaths, and is one of only two classified as a level 7 event (the maximum classification) on the International Nuclear Event Scale (the other being the Fukushima Daiichi nuclear disaster in 2011). Photo: Graffiti of a crying baby on a wall, Chernobyl Power Plant, Chernobyl, Ukraine. (Photo by Hans Neleman/Getty Images)

Police women ride Segways as they patrol at Guangzhou South Railway Station on Jaunary 4, 2012 in Guangzhou, China. (Photo by ChinaFotoPress/ChinaFotoPress via Getty Images)

A eunuch dances during a rally to mark the congregation of thousands of eunuchs from different parts of India, in Jammu, India, Friday, March 13, 2015. The term eunuchs is used in India to describe transvestites, transsexuals and others who identify themselves as neither male nor female but as a member of a third gender. They traditionally survive by begging, dancing at weddings or blessing newborn babies and are frequently subjected to discrimination. (Photo by Channi Anand/AP Photo)

Bikini Contest in Daytona Beach, Florida, USA. (Photo by Evan Hurd/Sygma/Sygma via Getty Images)