Fodor's Expert Review Usina Chaminé
In an early-20th-century sewage-treatment plant that never functioned, this cultural center on the banks of the Rio Negro features interesting permanent exhibitions that explore Amazonian tribes, the illegal exploitation of the Amazon's flora and fauna, and the essence of famous fragrances such as Chanel No. 5. English-speaking guides are available and there are interactive sections for kids. Its elegant neo-Renaissance–style interior, with hardwood floors and massive wood beams, is reason enough to visit.