Construction of Barcelona’s iconic (but controversial) church was finally completed in 2026—a century after the death of its architect.

Designed by Gustave Eiffel before his famed tower.

Occupied for six centuries by Franciscan Order nuns, this monastery is an amazing ode to Catalán Gothic architecture.

Mountain where Jesus was first tempted by the Devil.

Barça football fans might see the insignia hidden in a church window as a divine sign.

The 2,000-year-old Roman columns are hidden within Barcelona's Gothic Quarter.

The oldest giants in Catalonia are now displayed in a 14th-century Gothic church.

Dunk your churros in rich hot chocolate on the city’s old “Chocolate Street.”

Catalonia Tradition: Beating the hollow Christmas log until it defecates in your fireplace.

Medieval streets buried beneath a papal fortress now form an underground city you can walk through.

Nine caves filled with recently-discovered archaeological finds under the houses and the streets of the most ancient district of an old town.

This picturesque Umbrian city has a subterranean side that has long remained hidden.

Water and windows define this defensive Italian well.

It’s Christmas every day at Barcelona’s oldest restaurant.

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

This 16th-century monastery has been turned into a surrealist architecture compound.

One of the four sanctuaries of Rieti's Holy Valley was the site of the first living nativity scene.

Romans built the world's tallest artificial waterfall in 271 BC.

Naturally preserved bodies are eerily staged throughout the crypt in varying poses.

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

These secluded and abandoned anti-aircraft defenses have become one the most scenic viewpoints in Barcelona.