Standing guard at the edge of the Tagus River, the Torre de Belém is Lisbon’s most recognized monument and a proud symbol of Portugal’s Age of Discovery. Built between 1514 and 1520 in the ornate Manueline style, this fortified tower once served as a ceremonial gateway for explorers departing on voyages to unknown lands. Its limestone facade is adorned with intricate nautical motifs — twisted ropes, armillary spheres, and even a carved rhinoceros nodding to the exotic discoveries of the era.

Climbing the narrow spiral staircase rewards visitors with views across the river mouth and the Belém waterfront. The tower’s four floors include a governor’s room, a royal chamber, and an atmospheric lower bastion where cannons once pointed out to sea. Combined with the nearby Jerónimos Monastery and Padrão dos Descobrimentos, it anchors one of Lisbon’s most historically significant neighborhoods.

Pro tip: Arrive right at opening to avoid long queues, as the tower’s small interior limits the number of visitors at any time. Combine your visit with a pastéis de nata from the famous Pastéis de Belém bakery just a 10-minute walk away.