One of the most well-preserved castles in Italy also contains a rare medieval example of a port fortification.

A devastating landslide accidentally created this tourist hotspot.

This old medieval prison tower has been a site of astronomical research for more than 250 years.

This community on a small Venetian island has taken to painting their houses in bright neon hues.

Originally a leper colony, the island is now an Armenian monastery that's home to an incredible manuscript library and eclectic museum.

This palatial spiral staircase was so unusual the name "snail" was given to the noble family who built it.

A new sculpture calls attention to climate change in the centuries-old city it threatens.

This sturdy, circular stronghold served as one of the forts that protected the Venetian Lagoon.

This panoramic lift provides a futuristic ride up San Pedro Mountain.

This huge abandoned fortress hidden inside a mountain holds a world of subterranean secrets.

This magnificent market stands as a poignant symbol of the suffering caused by the Spanish Civil War.

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

Originally planted by the ancient Carthaginians, this sprawling palm grove is one of the largest in the world.

An ancient Roman theatre restored to its former glory in the Spanish city of Cartegena.

Spanish architects used seized Muslim gravestones to rebuild parts of the fortress.

A New York–based physician returned home to Spain to build his own elaborate monument to Christopher Columbus.

The discovery of these rare, ancient artifacts led to the creation of a new museum.

The final resting place of the great navigator, or maybe his brother.

Spain's largest bullring offers a unique glimpse at architecture and history.

A 16th-century Andalusian palace.

This former charity hospital for elderly clergy houses some of Seville’s most treasured paintings.

This fascinating and poignant museum chronicles every imaginable aspect of Spanish colonialism in the Americas.

Madrid's last horchata kiosk is a blue-and-white beacon of refreshment.

Inside this church are the alleged remains of the patron saint of lovers, epileptics, and beekeepers.