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

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

One of Antoni Gaudí's most classic buildings is well-known for its "dragon-back" design.

Three bridges and one giant canyon make up this fantastic Spanish settlement.

This quaint Spanish village agreed to be painted blue as a marketing stunt but found that they preferred it that way.

These ruins in Volvi were once at the intersection of the Eastern and Western Worlds.

Roman ruins top white travertine terraces formed by ancient hot springs.

According to myth, Zeus himself was hidden in this cave to escape being eaten by his dad.

A minotaur, a labyrinth, and a dubious restoration pull in visitors from around the world.

Perched on a spindly rock spire in a Greek archipelago, this lighthouse would make a perfect wizard's tower.

This fairytale castle was built as a show of power but was nearly torn down thanks to its history of torture.

This Polish cave has housed a dragon, a brothel, and an enduring legend.

Ruins of a German Castle on top of a towering stone pillar.

Old Danish castle immortalized in Shakespeare's Hamlet.

This medieval castle overlooking the Elzbach river looks just like it did hundreds of years ago.

The legendary cliffside castle of three-time Voivode of Wallachia, Vlad the Impaler.

This 1,300 year old monastery built atop a single rock was once only accessible depending on the whims of the tide.

An ethereal glowing blue ocean cave in Croatia.

A tiny microvalley etched into the side of Knocknarea Mountain hides another world.

Stunning wetlands ablaze with pink lotus flowers.

A spectacular cave and a beguiling lake.

An isolated dive site teeming with cnidarians.

An exquisite tunnel of cascading flowers.

On Japan's Tashirojima Island, cats are king.