Mexico City’s new Museo Soumaya (named after the deceased wife of Carlos Slim, the Mexican billionaire who owns the museum) was finally unveiled to the public late last month. The museum houses 60,000-square-feet of continuous exhibition space spread over six levels and containing over 6,200 pieces from Slim’s art collection.

Designed by Fernando Romero of the firm FREE, the building is shaped like a woman’s bustier with a cinched waist. The amorphous structure is built with 28 curved steel columns of varying diameters, each with its own contoured geometry. While the exterior mass resembles a singular object, the skin is comprised of thousands of hexagonal aluminum modules.

While the building itself is almost opaque–it has no windows–the roof of the top floor is suspended from a cantilever, letting in natural light. The result is a monumental parametric design offering a dramatic sculptural addition to the city once celebrated for its tradition and hand-painted, colorful architecture.