This imposing palace used to be one of the residences of Brazil's royal rulers and presidents. Nowadays it houses the Rio de Janeiro state administration. It is an impressive building worth noticing if you're passing by. Grab your camera and take some fancy pictures.
Wikipedia https://pt.wikipedia.org/wiki/Palácio_Guanabara
Official website http://www.rj.gov.br/web/guest/exibeConteudo?article-id=283720
Phone +55 2334-3121
Address Rua Pinheiro Machado, Rio de Janeiro, Brazil
Coordinates -22°56'15.403" N -43°11'2.521" E