The ancient maze of galleries under the streets of Lisbon is known as the "Galerias Romanas" or Roman Galleries. These galleries are believed to have been built during the 1st century AD by the Romans to supply water to the city. The galleries are located in the Baixa neighborhood, which is the historic center of Lisbon. The galleries are made up of a series of underground … [Read more...] about Exploring Lisbon’s Ancient Roman Galleries: A Rare Opportunity to Discover History Beneath the Streets