Smalldog Imageworks Creative Retouching for Chick-fil-A Cows Calendar «Trail Grazers» by photographer Andy Mahr, 2011. (Photo by Andy Mahr)

Tank crew standing in front of M-4 tank, Ft. Knox, Kentucky, June, 1942. (Alfred Palmer/OWI/LOC)

A girl takes pictures after opening ceremony at Shanghai Disney Resort in Shanghai, China, June 16, 2016. (Photo by Aly Song/Reuters)

A stuntman performs while riding a car inside the “Wall of Death” attraction during a fair in Bhaktapur April 20, 2015. (Photo by Navesh Chitrakar/Reuters)

A publican serves a glass of stout to a donkey in the East End of London, 1960s. (Photo by Steve Lewis/Getty Images)

Tianmen Mountain is a mountain located within Tianmen Mountain National Park, Zhangjiajie, in northwestern Hunan Province, China.

The watercolor artist Bjorn Bernstrom is well-known in his native Sweden for his landscape paintings. Yet his style is somewhat different from traditional watercolor methods.