Fodor's Expert Review Museo de las Culturas
This gorgeous museum is laid out in a series of galleries around the cloister of the labyrinthine Ex-Convento de Santo Domingo. On the ground floor are temporary exhibits and a collection of antique books. On the second floor you'll find rooms dedicated to Oaxacan music, medicine, indigenous languages, and pottery. More than a dozen other salons have been organized chronologically.
Here you'll find such Monte Albán treasures as the stunning gold jewelry from Tomb 7.
Signage is in Spanish only, but English-language audio tours are available. Several lovely second-floor balconies have views of the botanical garden. The on-site shop has a wonderful collection of books, including coffee-table volumes on the art and architecture of Oaxaca. There are also plenty of maps and travel guides.