This zoo is run by the Brazilian army and features not only an impressive array of macaws, cats, and other species, but military vehicles too. It is probably a much more fulfilling zoological experience than the one at the Hotel Tropical.
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Nice promenade along the Rio Negro from which to view the river or Manaus. A chance to see some old factories and also grab a sno cone or helado from a kiosk as you catch a glorious sunset on the Amazon.
Athletic club basically with basketball courts, pool, and other sorts of recreational amenities.
Yet another Amazonia museum, this one in a colonial house, and curated by the public university. Nice baskets and masks and caiman skull collection.
Original home of first Afro-Brazilian governor of Amazonas state who made modern Manaus.
Amazonas Opera House
The Opera House was built during the heyday of rubber trade, using materials from all over the world, and was once visited by all the most famous opera divas and maestros. Regular guided tours in English, R$ 20. There are frequent free performances, often advertised on the SEC Facebook Channel; be sure to arrive at least an hour in advance to secure a seat. Also, check out the Largo de São Sebastião just to the east to experience this square with Opening of the Ports of Friendly Nations statue and historic buildings around. A together with the Theatro da Paz in Belém.
Just a small museum with an array of relics about this region of the Amazon. In a pretty pink historical mansion. Limited hours.