Ukrainians pour water on each other on a street in Lviv, Ukraine, 02 May 2016. The tradition of pouring water was an ancient spring ritual of cleansing on first Monday after Orthodox Easter. (Photo by Mykola Tys/EPA)

In this photo taken on August 26, 2017, a contestant of the “fantasy” category prepares to be judged during the Daegu International Bodypainting Festival in Daegu, South Korea. The bodies of dozens of female models turned into living canvases this weekend as they allowed delicate brush strokes and flamboyant illustrations to cover up their bare skin. They are part of the 2017 Daegu International Bodypainting Festival along with top artists from 10 countries that runs until August 27 in South Korea's southeastern city of Daegu. (Photo by Ed Jones/AFP Photo)

Nic Lamb rides a wave during the third heat of the first round of the Mavericks Invitational big wave surf contest Friday, January 24, 2014, in Half Moon Bay, Calif. (Photo by Eric Risberg/AP Photo)

Palestinians walk on a road during a power cut in Beit Lahiya in the northern Gaza Strip January 11, 2017. (Photo by Mohammed Salem/Reuters)

A concept illustration of the world's first forest in the sky, the Bosco Verticale green twin towers currently under construction in Milan, Italy. Towering over the city skyline the world's first forest in the sky will be a sight to behold. With tree equal to one hectare of forest spanning 27 floors these 365 and 260 foot emerald twin towers will be home to an astonishing 730 trees, 5,000 shrubs and 11,000 ground cover plants. (Photo by Boeri Studio)

A couple dance tango for tourists at Caminito, a touristic hotspot of La Boca neighborhood in Buenos Aires, Argentina, October 15, 2016. (Photo by Enrique Marcarian/Reuters)

Spanish soldiers of the 7th Airborne Light Infantry Brigade “Galicia” fire a howitzer Light Gun L118 during maneuvers with other units in preparation to NATO's Very High Readiness Joint Task Force (VJTF) in Zaragoza, Spain, April 19, 2016. (Photo by Javier Cebollada/EPA)

A woman transports fodder for her cattle on a bullock cart on the outskirts of Ajmer, Rajasthan, January 6, 2017. (Photo by Himanshu Sharma/Reuters)