One of the hidden wonders in the city of Lisbon is the archaeological museum in the basement of the Millennium BCP Bank in Lisbon, the Nucleo Museologico do Millennium BCP. Discovered in the early half of the 1900s, the Museum is a treat for those who want to learn more about the history of Lisbon. The Museum has exhibits and artifacts that date back to more than 2500 years and offer an insight into the culture and civilization of the region. Six days of the week, the Museum conducts guided tours through the premises which are an excellent source of information for visitors and you will be able to explore the ruins and ancient structures in detail.