Young monks play inside the Punakha Dzong, Bhutan, April 17, 2016. (Photo by Cathal McNaughton/Reuters)

Young acutus crocodile are pictured at Panagator, a sustainable crocodile farm, on the outskirts of Panama City September 11, 2015. Gladys Vallarino, owner of the farm and of a specialty boutique shop selling items made from crocodiles, says the farm looks after more than 19,000 Acutus and Fuscus species of crocodiles and donates five percent of its crocodiles annually to the Panamanian authorities to be put into the wild, in accordance with the regulations of the CITES (Convention of International Trade in Endangered Species). The handmade fashion items sell for $200 to $3,000. (Photo by Carlos Jasso/Reuters)

Jeison Rodriguez (L), 19, the living person with the largest feet in the world, poses for a picture with his older brother Wilmer, 24, outside their house in Maracay, Venezuela, October 14, 2015. Rodriguez, holds the Guinness World Record for the largest feet, with 40.1 cm (1 ft 3.79 in) on the right foot and 39.6 cm (1 ft 3.59 in) on the left foot. (Photo by Carlos Garcia Rawlins/Reuters)

A girl reacts during a rehearsal for the Independence Day military parade in central Kiev, Ukraine, August 19, 2016. (Photo by Valentyn Ogirenko/Reuters)

A full size working replica of the pink limousine used by Parker to chauffeur Lady Penelope in Gerry Anderson's television series “Thunderbirds”, unveiled at Woburn Abbey. United Kingdom, 27th May 1968. (Photo by Jim Gray/Keystone/Getty Images)

These are the ambitious plans which suggest skyscrapers of the future may house an entire city. The Endless City project is an award-winning proposal by sure Architecture, who propose turning skyscrapers into complete ecosystems. London is the proposed city for the mixed-use tower – which would feature huge ramps linking different sections of the structure. The company, whose design won the SkyScrapers and SuperSkyScrapers Competition, insist the structure would be a great space-saver in dense cities which have previously spread outwards rather than upwards. (Photo by Caters News)

The old church of Geamana village is seen partially submerged by polluted water tainted with cyanide and other chemicals near Rosia Montana, central Romania, March 24, 2014. (Photo by Bogdan Cristel/Reuters)

Revelers participate in the traditional Bloco da Lama (Mud block) carnival in Parati, Rio de Janeiro State, Brazil, on February 9, 2013. The event, which was begun by two men in a playful manner in 1986, has now become a traditional carnival in which participants disguised as primitives with rags, lianas or skulls and bones, dive in the mud. (Photo by Victor Moriyama/AFP Photo)