This cramped crevasse saw the entire population of its island suffocated inside its depths.

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

The location of this historic castle was inspired by a donkey.

This 16th-century house tells the city's history through old artifacts and quirky tales.

This observatory within Europe's first dark sky park offers stunning views of the night sky.

Monty Python fans will recognize this abandoned mine as the Cave of the Killer Rabbit of Caerbannog.

Near the former site of numerous witch burnings, this lavish Edinburgh mainstay pays homage to Scotland's brutal history.

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

This modern labyrinth lies in the shadow of a ruined medieval castle.

A hidden tunnel leads to a medieval queen's shrine buried beneath a parking lot.

A scattered trail of street art adds a pop of color to the city's stark structures.

Hidden in a Scotland museum is a copse of extinct tree stumps.

The final resting place of soldiers' loyal canine companions.

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

Now famous as the "Harry Potter bridge," this impressive concrete viaduct has long been an icon in its own right.

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

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

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

"Respectful to the dead, safe and sanitary to the living, dedicated to the Genius of Memory..."

The most iconic structure in Scotland has been home to bishops, colonels, and Sean Connery characters.

This dramatic landscape hidden on the Isle of Skye looks as though you've stepped into the magical realm.