A conductor (C) collects fares from candy floss sellers as they travel in a tram to a marketplace early morning in Kolkata, India, December 23, 2015. (Photo by Rupak De Chowdhuri/Reuters)

A woman arrives at the Shinto Meiji Shrine to pray on the first day of the new year in Tokyo, Japan, January 1, 2016. (Photo by Thomas Peter/Reuters)

Amundsen-Scott South Pole Station experiences months of darkness. The sun dips below the horizon on March 21, after which follows several weeks of twilight before complete darkness results. Photo taken on June 25, 2009. (National Science Foundation/Jeremy Johnson)

Tinni the dog and Sniffer the fox became quick friends, prompting the pooch's owner Torgeir Berge to start a campaign against the highly controversial fur trade after he noticed "how similar foxes and dogs actually are," calling the fox the "dog of the forest." Berge and his friend Berit Helberg plan to release a book sometime next year chronicling the duo, because "no animals should be living like the animals in the fur industry are living." According to animal advocacy group PETA, many creatures bound for the fur industry are allegedly kept in small, restrictive cages for their entire lives. Berge and Helberg said they plan to donate a portion of the proceeds to help save the Sniffers of the world, and we can totally see why.

A tourist jumps inside an upside-down house at Fengjing Ancient Town, Jinshan District, south of Shanghai, May 1, 2014. The upside-down house was built as a tourist attraction using everyday household items and furniture. (Photo by Aly Song/Reuters)

A soldier stands guard on the aircraft park of the Pyongyang Airport on April 3, 2011 in Pyongyang, North Korea. Pyongyang is the capital city of North Korea and the population is about 2,500,000.