Your Casa Azul ticket grants free entry to Anahuacalli — Diego Rivera's monumental pyramid of black volcanic stone, 5 km south in Coyoacán. No extra booking, no extra fee, same-day access. Rise through three floors of shadowy, Aztec-inspired halls lined with more than 45,000 figurines, masks and sculptures Diego collected across a lifetime. Marble mosaic ceilings glow overhead, volcanic walls turn rough under your fingertips. On the top terrace, panoramic views open over the Pedregal — the solidified lava landscape that inspired both Rivera's vision and Mexico's modernist movement. Fewer crowds than Casa Azul, deeper silence, and the cultural counterpoint that completes Frida's story. Allow 45 minutes to 1 hour. Closed Mondays.