A camel herder removes the rope from the mouth of a camel at the Pushkar Fair in Rajasthan, India, November 22, 2015. Thousands of animals, mainly camels, are brought to the annual fair to be traded. (Photo by Jitendra Prakash/Reuters)

Visitors and a dog stand on the new “Skywalk” viewing platform on the Sonnenstein mountain in the Eichsfeld region near Bad Lauterberg im Harz, central Germany, on May 22, 2017. (Photo by Martin Schutt/AFP Photo/DPA)

Laborers lay down upon a field to cut off the tulips that remained uncut by the tractor in Den Helder, Netherlands April 22, 2017. (Photo by Cris Toala Olivares/Reuters)

This September 22, 2014 photo, shows a building with street art murals in the Santurce neighborhood in San Juan, Puerto Rico. (Photo by Ricardo Arduengo/AP Photo)

Men eat oranges from a push cart along a road as a vehicle travels past them in Karachi January 22, 2015. (Photo by Akhtar Soomro/Reuters)

A glamour model Lacey Banghard attends a photocall for PETA to encourage pet owners to have their cats and dogs sterilised at Picadilly Circus on January 22, 2013 in London, England. (Photo by Ben Pruchnie)

Models present creations by fashion design students of the Taiwanese Shih Chien university at the Berlin Fashion Week Autumn/Winter 2016 in Berlin, Germany, January 22, 2016. (Photo by Fabrizio Bensch/Reuters)