Opening Museum Of Tomorrow

RIO DE JANEIRO, BRAZIL - DECEMBER 19: Performers dressed in period costumes march in front of the Museum of Tomorrow, designed by Spanich architect Santiago Calatrava, on its opening day in the port district on December 19, 2015 in Rio de Janeiro, Brazil. The museum is focused on the need for environmental sustainability and uses 40 percent less energy than conventional buildings, according to designers. The cooling system uses water from the adjacent and polluted Guanabara Bay.