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A portion of the Perimetral overpass is demolished as part of Rio's Porto Maravilha (Marvelous Port) urbanization project, in Rio de Janeiro on Sunday. The project is for the city's redevelopment ahead of the 2016 Olympic Games.

Explosives are detonated to demolish part of the Perimetral overpass in Rio de Janeiro on April 20, 2014.RICARDO MORAES / Reuters