Shy of a visit to Brasilia, this is the best place to see Brazilian modernism in all its concrete austerity. Designed by famed Brazilian architect Oscar Niemeyer, the monument consists of a vast field of concrete dotted about the edges with perfectly geometrical concrete pavilions originally painted blinding white, but long since streaked by the rain. If architecture doesn't turn your crank, you probably shouldn't come here. That said, the two pavilions of most interest to non-architecture buffs are the Art Gallery -- home to ever-changing fine art exhibits -- and the Hall of Creativity, home to a fun and fascinating display of folk art from across the length and breadth of Latin America. Allow 2 hours.