Cascais boasts a wealth of architectural monuments, including the beautifully painted church of Igreja da Assuncao (Assumption of the Virgin Mary), which miraculously survived the earthquake of 1755. Along the picturesque city park behind the port, you'll find the Count of Guimarães Library Museum, housing a rich collection of books, paintings, sculptures, and ancient icons.
A key attraction in southern Cascais is the ancient 17th-century fort, drawing tourists to its fish market open in the mornings. The marina in the area adds to its charm.
Exploring Cascais with a sightseeing map will lead you to the Convent of Piedade, constructed in 1641 under the patronage of Count Antonio de Castro of Monsanto. Originally serving as the first official school of philosophy, it transformed into a convent in 1834. After the nuns departed, the building lay abandoned until the late 19th century when it was repurchased and transformed into a palace with stunning gardens. Today, it functions as a cultural center hosting art workshops and is owned by the municipal council.