In the heart of Luxembourg's "little Switzerland" weaves a breathtaking natural sandstone canyon with a mythological past.

These ramparts, once lined with towers, were constructed in defense of Beaune.

This beautifully designed star-shaped fort was the premier defense system of the late 1500s.

A farm turned upside down.

The struggle of a small Dutch island against the sea.

This former hydraulic laboratory is now a woodland dotted with old engineering models.

Repurposed space and ultra-modern construction collide to create this geometric wooden spectacle.

This giant radio telescope would be a rusting ruin if it hadn't become such a beloved relic.

An ancient Scottish rock formation said to be the gravesite of a giant remains ensconced in legend and intrigue.

Ancient cliffs resembling a kilt on Scotland's second largest island emit an entrancing sound.

A former coastal watch post has been turned into a bothy with unrivaled views of the sea and its inhabitants.