Bioluminescent firefly squid light up this Japanese fishing port.

A ruined castle has more than its fair share of legends and ghost stories.

Harry Potter once visited this massive limestone cliff, which was carved by an ancient glacial river.

This trio of neolithic stone monuments are fabled to be a king and his knights that were petrified by a witch.

Possibly the oldest of Britain's ancient henges is also one of its most stark.

Enter the world under the hill at this ancient UK burial chamber.

This picturesque archeological site looks like it was pulled straight from a fantasy novel.

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

The highest peak in the United Kingdom has a history of physics, specters, and a pilgrimage of strange objects.

This antique prison is a tourist attraction with a sordid past.

400-year-old garden, restored to beauty.

This historic Benedictine monastery brews a booze so toxic that it has often been blamed almost singularly for Scottish hooliganism.

Legend says these rocks used to be hunting dogs, a story that may have inspired Sherlock Holmes' most famous case.

Unsurprisingly, Holland is home to one of the most magnificent flower gardens in the world.

The true age of this ancient stone circle is unknown, but its stunning vista isn't in question.

One of Europe's oldest libraries.

Huge concrete structures designed as an early warning system for Britain to detect enemy aircraft.

Housing the famous Norwegian ice-defying 19th century polar exploration ship.

Across the Pacific in a raft, a museum dedicated to Thor Heyerdahl's now legendary expedition.

Home to three historic ships from the age of Vikings.

A bronze statue dating back as far as 1252, still has remnants of gold on its right cheek from ancient gilding.

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

The stones of this Incan wall complex fit together so well you couldn't fit a piece of paper between some of them.

Around 100,000 bodies are buried below the medieval headstones, many of which mark graves with multiple bodies stacked up to 12 deep.