Around eleven kilometres off Sintra, this museum is about twenty minutes from any hotel in Sintra. This museum opened all the way back in 1955, and displays ruins of an ancient Roman villa and a graveyard from the Middle Age. The museum is a must visit for any history buff, especially due to the epigraph assortment. Thought to be one of the most comprehensive collections in the world, it houses more than two hundred artefacts from the Medieval, Visigoth and Roman era. Aside from the exhibits, the complex has a dedicated library, workshop and a relaxation zone.