When the Portuguese maritime expansion had its peak, in the 16th century, Cascais was one of the first places to have a lighthouse. The Guia lighthouse was built in 1610 and a small hermitage was built in the surrounding area with the following inscription: "Guide of the seamen".

Watchtower also known as Lookout from the mouth of hell, which is integrated in the defensive system of the bar Tejo. Although badly damaged, preserves the original structure.

Of the ancient medieval wall there are only some vestiges left, including one of its gates. Rather damaged by the partisan guerillas in 1580, it was rebuilt after the Restoration.

Large estate surrounded by a masonry wall hiding the building of housing and construction. Develops on four floors and differentiated coverage features and staggered with one, two, three and four waters. He currently is vacant.

Tower built in 1917 by George O'Neill, according to Raul Lino project. Features L plant, common plant cloister hinged rectangle and a square plan adossado body, with two roofs and three waters. Around the House there is a garden that forms a nice public park.

Theater built in the late 19th century consisting of a longitudinal plan, with three contiguous bodies, a rectangle and two rectangular, corresponding to the lobby\/lounge, the Auditorium and the stage box.

Summer house built in the 19th century, showing a plant in L, with coverage carried out by two roofs and four perforated waters by a skylight.

Hospital building dating from the early 20TH century, showing a plant in "H" composed of three bodies. Initially, functioned as a sanatorium and, since 1961, as Orthopaedic Hospital.

Of the Castle's Doors all that is left is the entrance arch and a pillory.