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

A whimsical bridge adorned with decorative dragons.

This one-time health resort was used by aristocrats around the world.

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

The corpse bride of Portugal.

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

The verdant mossy ruins of a Franciscan monastery lie in the remote Sintra hills awaiting exploration.

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

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

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

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

Legacy of the earthquake that nearly wiped Lisbon off the face of the Earth.

One of the most beautiful bookstores in the world hides a neo-Gothic interior behind an art nouveau facade.

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

The works of poetry's biggest names grace the walls of the city of Leiden, all carefully painted by hand.

A former plague hospital turned medical museum.

A detailed pachyderm supports Rome's smallest Egyptian obelisk.

A medieval fountain lined with 99 unique stone faces whose origins and meaning remain unknown.

Italian poet Dante Alighieri is entombed in this small mausoleum in Ravenna, and his hometown of Florence has never been too happy about it.

The mummified relic of St. Antoninus.

Medieval town turned hippie commune, once home to the secret foreskin of Jesus Christ.

The only "Egyptian" pyramid in Europe and the legendary tomb of Remus.

Rome's semi-secret peephole vista is also a former Crusader stronghold.

Hundreds of lucky felines haunt the ruins where Caesar was murdered.