A naturally beautiful, seemingly bottomless deep blue spring.

A chain of 16 wondrous lakes formed as a result of the gradual dissolution of soluble layers of bedrock.

An Albanian monument to the Communism that nearly crushed the country is now a crumbling wreck.

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

This one-time health resort was used by aristocrats around the world.

A curious cave church carved into the face of a cliff.

One of the tallest buildings in Iceland, and perhaps, the most visually impressive.

The world's only museum devoted to the wonders of fluorescence.

A magical place that lets you play in and explore the world of Studio Ghibli.

The fairy tale castle of the "fairy-tale king."

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