The vast, legendary catacombs hold secrets much stranger than stacked bones.

An 18th-century lighthouse built on a 16th-century castle is now a monument to the maritime beacons of Scotland.

Memorial to the Titanic engineers that died working to hold back the sea.

The heart of a Scottish legend had a centuries-long journey before reaching its final resting place.

A whale's jawbone and a malfunctioning harpoon welcome you to the village of Bragar and its lore.

This Scottish burial tomb once held hundreds of ancient eagle bones.

This picturesque view of the Scottish Borders was beloved by Sir Walter Scott.

Largest lake in Great Britain measured by surface area.

Old-fashioned knowledge and modern engineering create the world's only rotating boatlift.

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

The one-time stronghold of the noble Douglas family, now home to ghost sightings and nesting birds.

This astonishingly geometric cave has inspired everyone from Jules Verne to Pink Floyd.

Dozens of musicians have planted trees in this Danish park, and donated songs to go with them.

Nordic giants resurrected from the sea and restored to their former greatness.

This Danish castle is supposedly haunted by a woman too independent to not be a witch.

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

The original home of the Lego has a huge amusement park dedicated to the iconic plastic toy.

The gilded, masterful astronomical clock will calculate time, dates, and planetary positions for thousands of years to come.

Pre-Nazi swastikas adorn the sculpted pachyderms flanking this brewhouse portal.

Old Danish castle immortalized in Shakespeare's Hamlet.

This colorful artistic feature atop a Danish art gallery allows visitors to stroll through a rainbow.

London's only public statue of the much-married monarch adorns the gate to St Bartholomew’s Hospital.

The wooden telephone box hidden away in London's Piccadilly was the original prototype of the iconic kiosk.

The pioneer of psychoanalysis spent the final year of his life here, still seeing patients on that famous couch.