Since the Palace of Liberty opened in 1876, it has housed several top government functions. These included being the headquarters for the province and later the state of Amazonas, the offices of state governors and then city hall starting in 1917. In 2018, Paço da Liberdade began a new chapter as the Museum of the City of Manaus. The exhibits portray cultural aspects of the area. These include the impact of local rivers and its flora, the lives of indigenous people, artifacts from everyday living and key historical events. There is also a photo gallery of past mayors in Noble Hall.