March 3, 2014
From Carnival 2014 Around the World, one of 35 photos. A performer from the Imperio da Tijuca samba school parades on a float during carnival celebrations at the Sambadrome in Rio de Janeiro, Brazil, on March 2, 2014. (AP Photo/Felipe Dana)

From Carnival 2014 Around the World, one of 35 photos. A performer from the Imperio da Tijuca samba school parades on a float during carnival celebrations at the Sambadrome in Rio de Janeiro, Brazil, on March 2, 2014. (AP Photo/Felipe Dana)

July 29, 2013
From A Crowded Weekend, one of 37 photos. Scenes of huge crowds in Egypt, North Korea, and Brazil. Left: Anti-Morsi protesters chant slogans during a mass protest to support the army in Tahrir square in Cairo, July 26, 2013. Center: Dancers use hoops during an “Arirang” performance at the 150,000-seat Rungnado May Day Stadium in Pyongyang, on July 26, 2013. Right: Clergy attend a Mass celebrated by Pope Francis on the Copacabana beachfront, in Rio de Janeiro, on July 28, 2013. (Reuters/Mohamed Abd El Ghany // Ed Jones/AFP/Getty Images // AP Photo/Felipe Dana)

From A Crowded Weekend, one of 37 photos. Scenes of huge crowds in Egypt, North Korea, and Brazil. Left: Anti-Morsi protesters chant slogans during a mass protest to support the army in Tahrir square in Cairo, July 26, 2013. Center: Dancers use hoops during an “Arirang” performance at the 150,000-seat Rungnado May Day Stadium in Pyongyang, on July 26, 2013. Right: Clergy attend a Mass celebrated by Pope Francis on the Copacabana beachfront, in Rio de Janeiro, on July 28, 2013. (Reuters/Mohamed Abd El Ghany // Ed Jones/AFP/Getty Images // AP Photo/Felipe Dana)

June 28, 2013
From In Protest, one of 47 photos. Erdem Gunduz (center) stands in a silent protest along with others, at Taksim Square in Istanbul, Turkey, on June 17, 2013. Gunduz, a Turkish man, staged an eight-hour silent vigil on Istanbul’s Taksim Square, scene of violent clashes between police and anti-government protesters in recent weeks, inspiring hundreds of others to follow his lead. (Reuters/Marko Djurica)

From In Protest, one of 47 photos. Erdem Gunduz (center) stands in a silent protest along with others, at Taksim Square in Istanbul, Turkey, on June 17, 2013. Gunduz, a Turkish man, staged an eight-hour silent vigil on Istanbul’s Taksim Square, scene of violent clashes between police and anti-government protesters in recent weeks, inspiring hundreds of others to follow his lead. (Reuters/Marko Djurica)

June 18, 2013
From Protests Spread Across Brazil, one of 32 photos. A military policeman sprays pepper gas at a protester during a demonstration in Rio de Janeiro, Brazil, on June 17, 2013. Protesters massed in at least seven Brazilian cities Monday for renewed round of demonstrations voicing dissatisfaction with the government’s economic policies, including billions of dollars spent on large sports projects, despite a serious need to fund public health, education and welfare. (AP Photo/Victor R. Caivano)

From Protests Spread Across Brazil, one of 32 photos. A military policeman sprays pepper gas at a protester during a demonstration in Rio de Janeiro, Brazil, on June 17, 2013. Protesters massed in at least seven Brazilian cities Monday for renewed round of demonstrations voicing dissatisfaction with the government’s economic policies, including billions of dollars spent on large sports projects, despite a serious need to fund public health, education and welfare. (AP Photo/Victor R. Caivano)

April 10, 2013
From Brazilian Police Evict Indigenous Squatters from 2014 Stadium Site, one of 30 photos. A native man gestures as he protests against eviction from the former Indigenous Museum — aka Aldea Maracana — next to the Maracana stadium in Rio de Janeiro, Brazil, on March 22, 2013. Indigenous people have been occupying the place since 2006, which is due to be pulled down to construct a parking lot for the upcoming Brazil 2014 FIFA World Cup. (Vanderlei Almeida/AFP/Getty Images)

From Brazilian Police Evict Indigenous Squatters from 2014 Stadium Site, one of 30 photos. A native man gestures as he protests against eviction from the former Indigenous Museum — aka Aldea Maracana — next to the Maracana stadium in Rio de Janeiro, Brazil, on March 22, 2013. Indigenous people have been occupying the place since 2006, which is due to be pulled down to construct a parking lot for the upcoming Brazil 2014 FIFA World Cup. (Vanderlei Almeida/AFP/Getty Images)

February 12, 2013
From Carnival 2013 in Brazil, one of 39 photos. A reveler from the Vila Isabel samba school participates in the annual Carnival parade in Rio de Janeiro’s Sambadrome, on February 12, 2013. (Reuters/Sergio Moraes)

From Carnival 2013 in Brazil, one of 39 photos. A reveler from the Vila Isabel samba school participates in the annual Carnival parade in Rio de Janeiro’s Sambadrome, on February 12, 2013. (Reuters/Sergio Moraes)

June 20, 2012
From Rio+20, one of 37 photos. An indigenous child from Kayapo tribe attends first indigenous assembly for the Rio+20 Conference at Kari-Oca village in Rio de Janeiro, on June 14, 2012. Indigenous people from around the world are visiting the village for the Rio+20 United Nations Conference on Sustainable Development. (Reuters/Ricardo Moraes)

From Rio+20, one of 37 photos. An indigenous child from Kayapo tribe attends first indigenous assembly for the Rio+20 Conference at Kari-Oca village in Rio de Janeiro, on June 14, 2012. Indigenous people from around the world are visiting the village for the Rio+20 United Nations Conference on Sustainable Development. (Reuters/Ricardo Moraes)

May 18, 2012
From Scenes From Brazil, one of 45 photos. Sugarloaf mountain and Guanabara Bay, at dawn in Rio de Janeiro, Brazil, on August 5, 2011. (AP Photo/Felipe Dana)

From Scenes From Brazil, one of 45 photos. Sugarloaf mountain and Guanabara Bay, at dawn in Rio de Janeiro, Brazil, on August 5, 2011. (AP Photo/Felipe Dana)