People watch the opening of the petals of the metal sculpture "Floralis Generica" during a show as part of its reopening in the Plaza of the United Nations, in the city of Buenos Aires, capital of Argentina, on June 10, 2015. The Floralis Generica, which is able to open and close its petals, was designed and donated by the architect Eduardo Catalano. The sculpture worked briefly after its opening in 2002, then the mechanism was broken because one of the petals was damaged by strong winds. (Xinhua/Martin Zabala)
