List of national monuments of Portugal

The national monuments of Portugal (Portuguese: Monumentos Nacionais) were constructed throughout the Portuguese territory, and the oldest date back to the period of pre-historic settlement of occupation. Subsequently, the region that is today Portugal has been colonized by many civilizations, which have left marks in the territory, constructing markers, defensive structures, homes and places of worship to suit their requirements and means.

Source: Wikipedia — List of national monuments of Portugal (CC BY-SA 4.0)