The ruins of this gorgeous clifftop castle look like something from a fantasy novel.

The farthest northwesterly point of the British mainland is one of the most remote places in the Scottish Highlands.

This volcanic plug boasts the longest recorded history of any Scottish stronghold.

This single-track road rewards brave drivers with stunning Scottish scenery.

A castle in the Scottish Highlands has been continuously inhabited since the 1300s.

These ruins witnessed the final gathering of the failed Jacobite Rebellion.

The only fixed chain and post trail in Scotland snakes its way along the base of a towering seaside cliff.

Summer in Scotland begins with a spectacularly wild and colorful event rooted in ancient pagan traditions.

During this Shetland Islands celebration, hundreds of torch-carrying "guizers" lead a procession to burn a viking longboat.

A red sandstone freestanding monolith rises out of the sea in northern Scotland.

Islanders once used this dramatic, otherworldly landscape to hide their cattle from Viking raiders.

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.

These fantastically named natural pools look like something out of a Scottish myth.

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

American soldiers discovered Europe's best one-liner at the end of World War II.

The largest free-standing aquarium in the world resides in a hotel lobby in Berlin.

The industrial monstrosity known as Bagger 258 is a colossal mining machine built in the DDR - but now left for dead in a German field.

Terrifying derelict military hospital once housed a recuperating Hitler.

A tree-like building perches on its trunk in the Steglitz neighborhood of Berlin.

A sprawling Baroque park with 300-year-old hydro-pneumatic waterworks.

Every autumn, this hillside is ablaze with red summer cypress.

Japanese company creates clone dolls that reside in the "uncanny valley."

Ancient and modern architecture are joined in Louis Kahn's monument to democracy.