This small town in the Netherlands has no roads but instead, miles of canals and over 100 bridges.

Preserving the research tools, unexpected inventions, and odd collections of generations of college professors.

This enormous censer uses a pulley system installed over 400 years ago.

An accidental trick of light casts the perfect shadow of a pilgrim of the Camino de Santiago against the cathedral wall.

A 12th century church completely covered in shells.

The oldest Roman lighthouse still in use.

This enchanting natural park is a magical example of a temperate rainforest in Europe.

This humble bench is considered the most beautiful in the world.

Giant topiary dog once played a role in a terrorist bomb plot.

This Navarrese cave's history of witchcraft and pagan ritual is not just embraced, but recreated each year.

A signal indicates the entrance to this alley, rumored to be a meeting place for witches.

Mountain where Jesus was first tempted by the Devil.

This semi-secret storybook hedge maze is also the oldest garden in the city.

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.

The largest Art Nouveau complex in the world is a Barcelona hospital with a 600-year-long history.

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

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

Turntable anonymously received orphans, alms, and groceries.

An early 20th-century bullring converted into a modern shopping center.

This colorful statue welcomes visitors to a Barcelona park.

A former steam-powered mill from the 1800s is now an industrial park with a giant steel dragon slide.

This stunning iron gate designed by Modernist architect Antoni Gaudí is filled with mythic symbolism.

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