A permanent display of Diego Rivera's huge collection of pre-Hispanic pieces. The impressive building is made entirely of volcanic rock and was designed by Rivera himself. It's in the shape of a pyramid, a tribute to Maya and Aztec cultures. Rivera's studio, with many of his sketches and giant papier mache figures, is undergoing renovations and is expected to open in 2009, but the rest of the displays are open to visitors. Daily except Monday 10:30 am-5 pm. M$45 adults. Hourly tours. Calle del Museo 150, Coyoacan, Mexico City. Phone 5617-4310.