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

A peculiar mansion built by the troubled heir to the Winchester Rifle Company fortune.

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

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

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

A striking memorial to the Jews of Leiden who were murdered during World War II is scattered throughout the city.

This early 19th-century graveyard is the final resting place of Vincent van Gogh's mother.

An ancient Egyptian temple sits within a modern European museum.

This public library and its impressive collection of academic books have not changed since the 17th century.

This historic Dutch newspaper building is covered with media-themed details—and one unrelated oddity.

Rotterdammers' dirty minds gave this Santa a dirty nickname and cursed it to a life of wandering.

Devious political maneuvering and four ancient, working telescopes are central to the world's second-oldest observatory.

A 'living museum' in Leiden, the oldest of its kind in the Netherlands.

A little sculpture with a large wardrobe.

Tucked away in the Leiden city hall are a group of works by famed artist MC Escher.

The remains of a medieval wall discovered in the basement of a jewelry store.

A massive explosion that leveled hundreds of buildings in the city of Leiden is remembered by a waterside plaque.

A trio of red, white, and blue stones embedded in the streets of Leiden are markers of medieval territory and law.

The last bastion of Roman presence north of the Alps looms over a German town.

Isolated atop this Balinese sea crag is a lovely Hindu temple that is said to be guarded by sea snakes.

Danish tourist destination well known for open stalls where vendors sell marijuana on the street.

The old observatory in Copenhagen has a spiral corridor used as a racetrack.

This trio of Australian rock spires may have inspired aboriginal legend or just modern tourism.

Gladiators battle and chariots race daily in the ruins of a once-great Roman city.