Fortaleza de Sagres is a historic fortress located in the Algarve region of Portugal. Built in the 15th century, it served as a strategic military outpost and played a significant role during the Age of Discoveries. The fortress offers stunning views of the Atlantic Ocean and the surrounding cliffs. The site is closely associated with Prince Henry the Navigator, who established a school for navigation and exploration nearby. Today, visitors can explore the remains of the fortress, including its walls, a lighthouse, and a large compass rose, which commemorates the maritime history of the region.