The Museo Arqueológico Centro Cultural Orellana (MACCO), housed in the modern cultural centre near the Napo malecón, is the best display in Ecuador of pre-Columbian ceramics from the Oriente region. The collection includes pottery, stone tools and ornaments from the Omagua, Napo-phase and Cofán cultures, with helpful Spanish-language panels explaining the chronology.
The same building also hosts temporary exhibits on the indigenous peoples of Yasuní and on the oil industry that has shaped — and damaged — the region since the 1970s. Allow an hour or so; entry is free or very cheap.