The Lisbon Museum headquarters is located in Campo Grande, in the city and district of Lisbon, in Portugal. It is housed in the grounds and gardens of the Pimenta Palace .

The Museum of Lisbon, formerly the City Museum, is made up of five nuclei: the Pimenta Palace (headquarters), the nucleus dedicated to Santo António, the Roman Theater, the archaeological nucleus of Casa dos Bicos and the West Tower of Praça do Trade.

The Lisbon Museum, formerly the City Museum, is a polynucleated museum in which Lisbon and its stories are revealed from different perspectives. There are five nuclei of the Lisbon Museum: Palácio Pimenta, Roman Theater, Santo António, Torreão Poente and Casa dos Bicos. Five distinct spaces, with valences and complementary objectives, which share a mission, an identity and a new image. The purpose is to reveal Lisbon in different ways, to make known the richness of one of the oldest cities in Europe.

In addition to the Theater, another Roman monument is managed by the Lisbon Museum: the Rua da Prata Roman Galleries, discovered underground in the Baixa de Lisboa in 1771 following the 1755 Earthquake. Open to the public twice a year.

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