Soumaya Museum, Mexico City, MX
Fernando Romero, 2011 

Carlos Slim Helu, the world's richest man, is responsible for the newly opened Soumaya Museum in Mexico City. Not only does it house priceless works by Dali, Picasso, and Rodin, and honor the founder's late wife, the museum building itself (by architect Fernando Romero) stands as the nation's greatest cultural monument.