The tent-like shape of this striking cathedral is formed by 16 curved pillars, jutting towards the sky like the fingers of a hand in prayer. Sunlight enters the roof through a wavy mosaic of blue, white and brown tiles.  Photo 5 of 11 in Design Icon: 10 Buildings by Oscar Niemeyer

Design Icon: 10 Buildings by Oscar Niemeyer

5 of 11

The tent-like shape of Brasília’s striking Roman Catholic cathedral, most of which is set underground, is formed by 16 curved pillars that jut toward the sky like the fingers of a hand in prayer. Sunlight enters the roof through a wavy mosaic of blue, white, and brown tiles.