Mayor of the city of Rio de Janeiro Eduardo Paes (L, front) together with Luiz Fernando Pezao (R, front), governor of the state of Rio de Janeiro, holds the first piece sliced from the cake during a birthday party for the city of Rio de Janeiro, in downtown of Rio de Janeiro, Brazil, March 1, 2015. Rio de Janeiro, the second-largest city in Brazil, celebrated the 450th anniversary of its foundation on Sunday and the revitalization of the city's port area rises as the greatest present for the residents. A 450-meter-long cake has been served at the birthday party. (Xinhua/Xu Zijian)