Sagres SightseeingString fortress, remodelled in the second half of the 18th century, and including a 15th century tower. The entrance boasts an impressive neoclassical Porta da Praça gate. The perimeter, fortified with gun batteries and cannons, extends the length of the Sagres cape. The fortress also features former supply warehouses, munitions store, barracks, captain houses and the shelters of the so-called "correnteza", which encloses the square to the south. The unique scenery and the historically documented presence of Prince Henry the navigator have bestowed Sagres with an unparalleled status in Portuguese legend and have brought worldwide renown. The history of Sagres is closely associated with the history of Promontorium Sacrum, a region documented since ancient times.