66,000 pieces of art, donated by one of the world's richest men.

A jaw-dropping "megalibrary" that turns book-browsing into a geometric adventure.

Diego Rivera's massive tiled fountain and failed infrastructure project.

Frida Kahlo's childhood home, now a museum of her life and works.

Part bookstore, part café, and part forest.

An island filled with hundreds of hanging, decomposing, decapitated dolls.