People walk out of an underground crossing in Moscow on April 24, 2017. (Photo by Yuri Kadobnov/AFP Photo)





The Elizabeth Tower, commonly known as Big Ben, together with walkers are seen reflected in a puddle in London, England on March 20, 2017. (Photo by Toby Melville/Reuters)





Visitors are reflected on the protective glass as they watch the ring-tailed lemurs at a zoo on the May Day holiday in Beijing, Monday, May 1, 2017. Millions of Chinese are taking advantage of the May Day holidays to visit popular tourist sites. (Photo by Andy Wong/AP Photo)





In an image rotated 180 degrees, commuters pass through Union Station as rain falls on the nation's capital on Thursday, May 11, 2017, in Washington, DC. (Photo by Jahi Chikwendiu/The Washington Post)





Fully bloomed cherry blossoms are reflected on the moat of Hikone Castle on April 10, 2017 in Hikone, Shiga, Japan. (Photo by The Asahi Shimbun via Getty Images)





An early morning runner passes the shadow of the Washington Monument in the reflecting pool on the National Mall during a light drizzle Monday, April 17, 2017, in Washington. (Photo by J. David Ake/AP Photo)





Ferrari's German driver Sebastian Vettel drives during the Formula One Chinese Grand Prix in Shanghai on April 9, 2017. (Photo by Johannes Eisele/AFP Photo)





Pedestrians are reflected in the window of a clothes shop at Berlin's Rosenthaler street September 16, 2012. (Photo by Fabrizio Bensch/Reuters)





A man is reflected in a mirror as he walks at La Latina neighbourhood in Madrid, Spain February 8, 2017. (Photo by Juan Medina/Reuters)





The Big Ben clocktower is reflected in a puddle London, Britain, 12 March, 2017. (Photo by Hannah McKay/Reuters)





Bicycles are seen reflected in the water of a canal in Delft, Netherlands March 14, 2017. (Photo by Yves Herman/Reuters)





Russian Orthodox believers attend a religious service marking 100 years since the abdication of the last Tsar Nicholas II at a cathedral in Moscow's Kolomenskoye park on March 15, 2017. Nicholas II abdicated on March 2, 1917, or March 15 by the current calendar, after the February Revolution in Saint Petersburg, when troops mutinied as protestors demanded bread and condemned tsarism. (Photo by Kirill Kudryavtsev/AFP Photo)





A man empties waste paper baskets in front of the Old Opera in Frankfurt, Germany, Thursday, March 2, 2017. (Photo by Michael Probst/AP Photo)





The silhouette of a pedestrian is reflecting in the water while crossing a bridge over The Arga river, in Pamplona, northern Spain, Tuesday, March 28, 2017. (Photo by Alvaro Barrientos/AP Photo)





Russian Communist party supporters take part in the traditional May Day rally in central Moscow on May 1, 2017. (Photo by Kirill Kudryavtsev/AFP Photo)





Belvedere palace and its reflection in a pond are seen before the lights were switched off for Earth Hour in Vienna, Austria, March 25, 2017. (Photo by Heinz-Peter Bader/Reuters)





In this March 20, 2017 photo, a man looks at the Victoria Habour at a commercial building in Hong Kong. In the morning of Sunday, March 26, a select group of tycoons, business leaders, politicians and trade and industry group representatives will gather in a cavernous exhibition center to vote for the next leader of Hong Kong. Three candidates are on the ballot but there's little uncertainty about who the winner will be, with China's communist leaders already signaling early on their preference to the committee, which is stacked with pro-Beijing loyalists. (Photo by Vincent Yu/AP Photo)





A group of colorful row houses are reflected on to the top of a black car parked on 3600 block of N street in the Georgetown section of Washington DC, February 16, 2017. (Photo by John McDonnell/The Washington Post)





A man takes a selfie in front as protesters burn buses during a strike in Rio de Janeiro, Brazil, 28 April 2017. Throughout the country Brazilian unions backed by various social movements and indigenous tribes are striking against pension and labor reforms being pushed by the conservative government of President Michel Temer. (Photo by Antonio Lacerda/EPA)





Graffiti is seen on a viewing porthole at Battersea Power Station in London, Britain, March 7, 2016. Developers are demolishing the corroded chimneys of the art deco landmark and will replace them with replicas, as part of the re-development of the area. (Photo by Toby Melville/Reuters)