This unreal Portuguese palace looks as though it's made from a pile of different castles.

This eccentrically decorated palace is replete with grottoes, fountains, tunnels, and caves.

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

This star-shaped military outpost is now simply trying to protect itself from neglect.

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

A 16th-century Andalusian palace.

A cluster of granite granaries perched on stilts.

This restored Portuguese cafe may well be the most beautiful place in the world to grab a Big Mac.

The medieval town's star-shaped walls are geometrically dazzling, though not entirely impenetrable.

Thanks to an acoustic anomaly, this unassuming stone bench has heard one hundred years of secrets.

The iconic boulevard is the perfect place to catch sight of a bicycling skeleton, a levitating Satan, or a chef with his head stuck in a pizza.

A vista of the city and sea from atop the little-known viewing deck on an unassuming Columbus statue.

Remarkably intact Roman stone fortifications have encircled this Spanish city for centuries.

Gaudí's famously flamboyant architectural style is on full display in this sprawling park and garden.

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

The "Little Ones," show Portugal in full miniature splendor.

A majestic hotel for dreamers rises from the center of a fairytale wood.

Elaborate tile work in this railway station tells the story of Portugal.

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

Ancient catacombs form the foundation for this Rococo orgy of a church.

One of the largest Roman settlements in Portugal.

The corpse bride of Portugal.

This Industrial Age architectural and engineering gem helps visitors and residents alike traverse Lisbon, “The City of Seven Hills.”

The medieval castle built as headquarters for the Pope's secretive Knights Templar.