Carlos Slim could be the world’s richest person with an estimated wealth exceeding $53 billion. But on March 1st he was just another art patron unveiling his personal museum. The Museo Soumaya, named for Slim’s late wife, will open officially on March 29th, but the glitterati got a sneak peak at the 66,00 piece collection.

Reviews are mixed on the six-story anvil shaped structure, which is part of a mixed use commercial/residential/cultural complex. Designed in part by Slim’s son-in-law, Fernado Romero, the curvaceous building is clad in over 16,000 glittering, hexagonal aluminum panels.