An underground museum below Plaza de la Cultura. The collection consists of 1,600 pieces of pre-Columbian gold work dating from 500 AD to 1500 AD. Although not of the quality seen in the Andes, the animal pieces are very impressive and make the museum a must-see for those interested in art or history. The museum explains the processing and production of the pieces as well as their social, cultural, and religious meanings. The entrance fee includes the Numismatic Museum and the Temporary Exhibition Galleries, which are inside the same labyrinthine complex. There is a nice museum shop and a tourist office at the entrance.