Manaus, a vibrant metropolis in the heart of the Brazilian Amazon, is a fascinating blend of urbanity and wilderness. Situated at the confluence of the Rio Negro and the Amazon, it is a starting point for jungle expeditions. Key attractions include the Amazonas Theater, a 19th-century opera house, and the Adolpho Lisboa market. Manaus is also a center for ecotourism and wildlife observation, offering encounters with the unique biological diversity of the Amazon rainforest.