A relatively easy way to see a piece of the Amazon close to Manaus. Boardwalk trails, floating village, (semi?-)domesticated sloth and anaconda.
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City market
After a renovation, most stalls were moved to the nearby Feira da Banana and Adolpho Lisboa became a clean and organized market, albeit lacking some soul. The main hall sells mostly souvenirs, the smaller ones to the left and right fish and meat. The restaurants inside it are affordable (mains for R$13-20) and a great option on Sundays and holidays when the majority of cheap eateries are closed.
Cultural space showing varying exhibits on Amazonian features (e.g. basket-weaving, botany, old Manaus tram car) as well as occasional performances.
Rio Negro Palace
Built by a German rich-man in the "golden age", the palace eventually became property of the government, which transformed it in a cultural center. Visits are free, being escorted by a staff-member is compulsory. Around the estate are manicured grounds and paths that culminate to the south at Parque Jefferson Peres, an impressive plaza of fountains, canals, and statuary close to the Rio Negro.
Provincial Palace
This grand architectural specimen is also host to several museums, including the Museu de Arqueologia, the Pinacoteca do Estado (plastic arts center), Museu Tiradentes da Policia Militar (military police museum), Museu De Numismática Bernardo Ramos (numismatics), and an art museum. Get all your museum-viewing done in one shebang.
Heliodoro Balbi Square
Leafy plaza that is abutted by the Provincial Palace and Police Square.
Another museum about the first peoples of the area, in case you are not already satisfied with the Museu do Homen do Norte.