A 6th-century stone lies at the site of the mythical battle waged between King Arthur and his nemesis Mordred.

A unique waterfall that some believe attracts the fairfolk.

400-year-old garden, restored to beauty.

Grab a cuppa at England's first and only domestic tea plantation.

This uniquely shaped rock formation is one of Scotland's most iconic mountains and gives spectacular views in all directions.

The world's oldest operating jazz club has been in operation since May 1934.

The Beaux-Arts aquarium boasts a vast collection of saltwater and freshwater fish on an island in the Detroit River.

This Denmark theme park is part family attraction, part experimental archaeology project.

This ultra-modern wooden boardwalk turns the ocean into a swimming pool.

An abandoned lighthouse awaits its destiny: being buried under shifting sand.

A perfectly circular stronghold constructed in the 10th century is now a nucleus of Viking culture housing a museum, village, and reenactment of an epic Viking battle.

Climb to the top of its spiral spire for spectacular views of Copenhagen.

Nearly 40 miles and 1,000 years of limestone mines under Denmark.

The northernmost point in Denmark is a turbulent sandbar created by two clashing seas.

This Danish rock field is actually a sprawling ancient cemetery holding the bodies of 700 Vikings.

Museum on earth sciences featuring a recreation of a famous curiosity cabinet.

A little-known cafe in an old copper bridge tower with 360-degree views of the harbor.

The old observatory in Copenhagen has a spiral corridor used as a racetrack.

A natural wonder in south Denmark.

Danish tourist destination well known for open stalls where vendors sell marijuana on the street.

Vortex-shaped aquarium hosts Europe's largest school of piranhas and other ocean creatures.

A 19th-century subterranean reservoir repurposed as a contemporary art cave.

An ultra-modern diversity park in Denmark has turned an entire city block electric pink.

The oldest amusement park in the world has been providing a nice spot to have some fun since the 1500s.