Talk about a project that could truly be called the soul of a country—this massive structure in Rio hosts the annual parade during Carnival and can hold 70,000 revelers. It includes the aptly titled Apotheosis Square, where bleachers are spaced out to create an open space for performances.  Photo 10 of 11 in Design Icon: 10 Buildings by Oscar Niemeyer

Design Icon: 10 Buildings by Oscar Niemeyer

10 of 11

The Sambódromo is one of two works designed by Niemeyer once he returned to Brazil in the early ’80s after being exiled in the mid-’60s. The structure hosts the annual Rio Carnival parade and can hold 70,000 revelers. It includes the aptly titled Apotheosis Square, where bleachers are spaced out to create an open space for performances.