Sé Catedral do Porto (Porto Cathedral), Porto (must see)

Back in the year 868, a nobleman from Asturias, Vímara Peres, arrived in the north of what is now Portugal and began reclaiming land from Moorish control. Among the places he took was a settlement called Portus Cale. The name eventually shifted to Portucale for the county he went on to rule, and gave rise to both Porto and Portugal. At the top of this early settlement was Penaventosa Hill—the highest point—where the city’s cathedral would later rise.

Before the cathedral, this hill had already held religious importance as a home to a Suebian church. Construction of the Porto Cathedral began in the 12th century and, like many long-lived projects, moved forward in stages. By 1737, it was finally considered complete. What stands today is a solid, fortress-like structure—less delicate ornament, more defensive confidence—looking out over the city below.

Take your time to observe the exterior. Two square towers frame the façade, sturdy and slightly severe, each topped with a cupola. Gothic details from the 15th century soften the front just enough, while the cloister—added in 1736 by the Italian architect Nicolau Nasoni—brings a more refined, decorative touch. Walk around to the northern side, and you’ll notice a mix of styles: a Baroque porch, a Romanesque rose window, and crenellated walls that make the whole place feel like it could withstand a siege, if needed.

Enter the building, and the mood shifts again. The nave is relatively narrow, covered by a barrel vault that draws your eyes forward. The Baroque apse is richly decorated with paintings by Nasoni, while the altarpiece, designed by Santos Pacheco, adds another layer of artistic detail. In the south transept, blue azulejo tiles introduce a familiar Portuguese element, telling stories through pattern and color.

Mass is still held here daily at 11 am, a quiet reminder that this is not only a historic monument but a living place of worship. Entry to the cathedral itself is free, while a small fee grants access to the Gothic cloisters and the Sacred Art Museum. If you have the energy, the tower climb is demanding but rewarding, offering views not only over Porto, but also of architectural details you simply can’t see from below.