The Santa Marta Lighthouse Museum is located to the south of the centre of Cascais, Portugal, making it a destination along the scenic Portuguese coast. Formerly the grounds of a fort built in the 1640s, the lighthouse and museum now offer visitors a unique experience that combines the history of lighthouses and Portuguese maritime navigation with sweeping views of the Bay of Cascais. The museum houses a wealth of artifacts, including dioptric lenses, keeper diaries, films and photographs – all set against the backdrop of a functioning lighthouse. There are also guided tours available for those looking to truly immerse themselves in Portuguese lighthouse culture. This museum is a must-visit to get an inside look at centuries of Portuguese maritime heritage.