A Siberian tiger cub is seen at the Hengdaohezi Breeding Center for Felidae on October 26, 2007 in Harbin of Heilongjiang Province, China. Established in 1986, the breeding center is one of the world's largest captive breeding base for Siberian tigers. Distributed throughout northeastern China, far eastern Russia and North Korea, over 400 Siberian tigers exist in the wild, approximately 20 in China. (Photo by China Photos/Getty Images)

Opposition protesters take to the streets of Moscow. Mass meeting in Bolotnaya Square on December 10, 2011 in Moscow, Russia.

Photo by: Stas Sedov and Dmitry Chistoprudov; Source: AirPano

Abandoned Armoured Repair Plant in Kharkiv (Kharkiv or Kharkov is the second-largest city in Ukraine) June 1, 2012. (Photo by Pasha Itkin; Source: LiveJournal).

(L-R) Victoria's Secret models Lily Aldridge, Erin Heatherton, Adriana Lima, Candice Swanepoel, and Chanel Iman attend the Victoria's Secret debut of the New "Incredible" Bra at Victoria's Secret, SoHo on March 1, 2011 in New York City. (Photo by Andrew H. Walker/Getty Images). NEW YORK, NY – MARCH 01

A performer is covered in chocolate sauce at the Notting Hill Carnival on August 28, 2011 in London, England. The annual carnival, which is the largest of it's kind in Europe and is expected to attract around 1 million revellers, has taken place every August Bank Holiday since 1966. (Photo by Oli Scarff/Getty Images)

A model walks the runway during the Jean Paul Gaultier Ready to Wear Spring / Summer 2012 show during Paris Fashion Week on October 1, 2011 in Paris, France. (Photo by Pascal Le Segretain/Getty Images)

A barn painted with the U.S. flag is seen in the snow covered field in Kanawha, Iowa, United States, January 16, 2016. Iowa will be the first state to hold its primary, with both Democratic and Republican events being held February 1, 2016. (Photo by Jim Young/Reuters)

Michael Fröhlich's Jowett Javelin rotting car in his forest sculpture park in Neandertal Germany, September 11, 2016. An eccentric artist has collected fifty vintage cars and left them to rot in a forest – and now they're worth over $1 million.