View of the Planalto Palace, the Brazilian Presidency building, located in Praca dos Tres Poderes in Brasilia, on August 29, 2025. World Architecture Day is celebrated annually on the first Monday of October. The Planalto Palace, designed by the late Brazilian architect Oscar Niemeyer, was the center of celebrations for the inauguration of Brasília on April 21, 1960. It marks a pivotal moment in Brazilian history, symbolizing the transfer of the federal capital from Rio de Janeiro to the country's interior. (Photo by Evaristo Sa / AFP) (Photo by EVARISTO SA/AFP via Getty Images)
