The symbolic center of Ireland, this summit also offers panoramic views of the countryside.

This chapel is the site of a yearly pilgrimage that originated during the Middle Ages.

A hidden three-foot-wide house separates these two regal churches.

An ancient and majestic fortress that played an integral role in Portugal's road to independence.

The stunning interior of this Gothic church is covered in ornate gold details.

Houses are tucked between, on, and underneath giant boulders.

An icon of the city, this chapel features an amazing dome ceiling and offers panoramic views.

This ship offers visitors the chance to spend the night aboard a former floating hospital for fishermen.

As the highest point in the Mid-Atlantic range this stratovolcano offers spectacular views.

A small but charming botanical garden that contains many exotic plant species.

This castle has links to Portugal’s founding and struggles for independence.

You can cross from one country to another in a single hop on this little bridge.

Perhaps the most spectacular grotto along the Algarve coastline.

A cluster of granite granaries perched on stilts.

The corpse bride of Portugal.

A stunning 18th-century site where pilgrims ascend by a series of punishing stairs only to return via funicular.

Elaborately carved to showcase the glorious wealth that the age of exploration brought to the Portuguese empire.

Construction of Barcelona's iconic (but controversial) church is expected to be completed in 2026—a century after the death of its architect.

Overshadowed by other, more famous Maltese catacombs, this ancient burial chamber has one of the best examples of a ritual agape table.

The fishing boats that moor in this small lagoon enter and leave through a tunnel to the sea.

This spectacular dome managed to survive after being bombed in World War II, in an event known as the "Miracle of Mosta."