Museu do Amanhã
Designed by the Spanish architect Santiago Calatrava, this spectacular sustainability-focused museum juts out into Guanabara Bay from Praca Maúa (restored in honor of the 2016 Olympics) like a spaceship about to take off. The permanent exhibits explore science through the mediums of art and technology, guiding visitors to imagine a new way of living through contemplating the cosmos, the Earth, and our relationship to it all. Don’t miss the on-site restaurant Casa do Saulo, with Amazonian cuisine.