Places thanesiel Wants to Go

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

An overgrown and largely forgotten cemetery lies hidden within the outskirts of Amsterdam.

This museum inside Amsterdam's largest cemetery explores how people deal with death.

This basement museum explores the art and artistry of fascism.

This impressive collection of rare books on ancient mysticism inspired author Dan Brown.

The attic of a four-century-old canal house hides a clandestine church.

A Dutch passageway's artistic, aquatic-themed makeover pays tribute to the capital city's famed waterways.

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

Cat art as far as the eye can see.

A floating cat sanctuary on an Amsterdam canal.

Museum preserving torture methods from the past.

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

A natural wonder in south Denmark.

Old Danish castle immortalized in Shakespeare's Hamlet.

The largest cave in Northern Europe.

A stunning silver lining to global warming's gloomy cloud.

Walk behind a 50-meter-high waterfall.

This "preacher's pulpit" once used for pagan ritual, is home to a new, and dangerous ritual.

Walk 2,300 feet above the ground on the "Troll's Tongue."

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

London's creepiest cemetery was once the site of dueling magicians and mobs of stake-carrying vampire hunters.

A fantastic castle rumored to be the birthplace of King Arthur.

One of the oldest scientific gardens in Britain, containing more than 13,302 plant species in its core collection.

Famously misunderstood wonder of the ancient world