The world's first ice hotel is still one of the most elaborate and beautiful.

An illuminated manuscript comprising the life's work of a lone monk, inexplicably decorated with a portrait of Satan himself.

A secret door leads to this cozy dive that sells only “milk.”

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

This enchanting hill is home to fairy lore and a sinister local mystery.

A Scottish manor with a history of mysterious fires, magic, and eccentric tales

Nestled amid the peaks and lochs of the Scottish Highlands, this inn and pub has played host to outlaws and ghosts.

This ethereal, rainforest-like gorge is home to waterfalls, quaint bridges, and fairy folk.

Britain's only herd of free-ranging reindeer.

On this stunning Scottish island, you can walk in the footsteps of dinosaurs.

A pagan tradition of draping trees with rags eerily lives on.

A 18th century graveyard and its astonishing cortege of macabre iconography.

The fountain marks the area where hundreds of accused witches were burned at the stake.

A 30-acre garden inspired by the principles of modern physics.

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

17th century streets hidden under Edinburgh were once a breeding ground for the black death.

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

This city square is home to Amsterdam's oldest church and a statue honoring Dutch sex workers.

This 22-floor tower's Skydeck offers panoramic views of Amsterdam.

A curious collection dedicated to human and animal anatomy and pathology.

An Amsterdam street lined with antique shops each one dedicated to a different obscure collection.

The world's only museum devoted to the wonders of fluorescence.

The birthplace of the ferocious William the Conqueror, this castle is awash in medieval history.

The mummified heart of Louis XVII, the lost dauphin of the French Revolution.