Italy's only urban waterfall has enchanted artists and travelers for centuries.

This former papal residence was the site of an infamous incident known as the “slap of Anagni.”

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 was finally completed in 2026—a century after the death of its architect.

This ancient Spanish castle sits high upon a hilltop.

Mine shafts and hard pastries await visitors at this massive mountain of salt.

Extensive Orthodox icon collection in Andorra.

Some of the smallest works of art in existence.

This hidden courtyard in the Andorran capital hosts a unique contemporary sculpture park.

In one of the smallest countries in the world stands an original Salvador Dalí sculpture.

Defy gravity at this fascinating Pyrenees overlook platform.

You can still walk across this beautiful medieval bridge in Andorra.

These long, lean figures pay tribute to the daring feats of the historical raftsmen of Catalonia.

A river hides a charming medieval bridge.

A Franco-era dam flooded (almost) everyone out of this centuries-old Aragonese town.

This charming, medieval walled village is Spain's first "book town."

Climb to the top of its spiral spire for spectacular views of Copenhagen.

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

Denmark’s ultra-modern library hides a treasury of rare, unique books.

An ultra-modern diversity park in Denmark has turned an entire city block electric pink.

Hidden in plain sight, a gravestone seemingly inscribed from the future stands among the cemetery’s historic tombs.

The final resting place of the author who gave us the Little Mermaid, the Ugly Duckling, and many more beloved fairy tales.

The final resting place of one of the brightest physicists of the 20th century.

A little-known cafe in an old copper bridge tower with 360-degree views of the harbor.