The Santa Marta Lighthouse Museum, which is right next to Casa de Santa Maria, occupies the former fort and the lighthouse with the same name.

The Santa Marta Lighthouse Museum, located near Lisbon’s Cascais Bay in Portugal, is a must-visit for those wanting to experience the city’s maritime history. Between 1868 and 1981, this former Fort of Santa Marta provided lighthouse illumination to sailors. Nowadays, visitors can go on an interactive tour to discover its evolution as both a historic fort and functioning lighthouse. The museum hosts multiple exhibitions highlighting Portuguese lighthouses and historic records written by the lighthouse keepers. Take time to marvel at the giant Fresnel lenses and huge catadioptric monitoring systems that play integral roles in illuminating the area’s waters. Interactive audio-visual tours and highly knowledgeable guides make the visit both entertaining and educational. Discovering the fascinating story behind the Santa Marta Lighthouse Museums will leave you with a deeper appreciation of one of Portugal's most iconic lights!