In this March 14, 2015 photo, tourists take pictures from a viewing area at Iguazu Falls in Brazil. From walkways and bridges, viewers can count 270 water falls almost 100 meters (330 feet) high. (Photo by Jorge Saenz/AP Photo)

Christ the Redeemer is seen from the Vista Chinesa (Chinese View) during sunrise in Rio de Janeiro, Brazil, May 4, 2016. Rio de Janeiro is a marvel and a mess all at once. When it hosts the first ever Olympics in South America, starting Aug. 5, visitors will see a city whose stunning topography – stark, verdant mountains loom over packed and playful beaches – competes only with the drama of daily life here. (Photo by Ricardo Moraes/Reuters)

A general view shows the Christmas decoration at a country house estate in the village of Bad Tatzmannsdorf, Austria, November 30, 2015. The estate owned by the Gollnhuber family is lit with half a million Christmas lights and more than 60 inflatable Christmas figures, turning the place into a winter wonderland every December and attracting thousands of visitors. (Photo by Leonhard Foeger/Reuters)

A view of one of the stands during the inauguration of the Integrated Systems Europe (ISE) fair, the largest audiovisual show in the world, in Barcelona city, Catalonia, north-eastern Spain, 31 January 2023. The event runs until 03 February, gathers 68,000 registered attendees and 1,055 exhibiting companies. (Photo by Quique Garcia/EPA)

View of an oil-stained bird on the shore of a contaminated lake in Maracaibo, Venezuela on June 22, 2023. The Azul Ambientalistas foundation denounced on 22 June the “state of emergency” in which the Maracaibo Lake, the largest in Venezuela, finds itself, due to oil spills that, it assured, are affecting the lake economy and the health of the people. (Photo by Henry Chirinos/EPA)

A view of children mannequins wrapped in purple and white barricade tape placed in front of the Cologne Cathedral, installed there by German artist Dennis Josef Meseg, called “Shattered Souls – in a Sea of Silence”, to protest against the abuse scandals in the Catholic Church in Cologne, Germany on August 3, 2023. (Photo by Wolfgang Rattay/Reuters)

A general view of dried-up rivers in the Pilbara region of Western Australia December 2, 2013. Western Australia's Pilbara region, which is the size of Spain, has the world's largest known deposits of iron ore and supplies nearly 45 percent of global trade in the mineral. (Photo by David Gray/Reuters)

Aerial view of flower fields near the Keukenhof park, also known as the Garden of Europe, in Lisse April 9, 2014. Keukenhof, employing some 30 gardeners, is considered to be the world's largest flower garden displaying millions of flowers every year. (Photo by Yves Herman/Reuters)