UNAM Central Library

This guide to the UNAM Central Library in Mexico City follows architect Juan O'Gorman, who turned to volcanic stone after working alongside Diego Rivera showed him a color that would never fade. It traces his search across the country for durable stone, the hand-broken tiles fitted piece by piece into roughly four thousand square meters of wall, and the four separate stories told on each face of the building. You'll also hear about the one wall he resented being asked to include.