Each of these hand-painted wooden boxes, which date to between the 16th and 19th centuries, contains a genuine human skull.

An enchanting work of outsider art, full of whimsical sculptures and carvings.

An isolated 17th-century chapel on a remarkable site once dedicated to Celtic sun worship.

If they push on just the right spot, even the weakest person can move this titanic boulder.

This ruined 15th-century hermitage is steeped in myth and mystery.

A close look reveals that the Scottish monument is just slightly off-kilter.

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

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

This 1,300 year old monastery built atop a single rock was once only accessible depending on the whims of the tide.

Folklore and history carved into Brittany's coast.

France's most famous cemetery, with some of its most curious tombs.

Paris' fabled purveyor of exotic taxidermy and natural history curios.

A Parisian cemetery where the elite and artistic are interred beneath an eccentric collection of tombs.

Tiny effigies of the victims of Edinburgh's famous Anatomy Murders.

The most loyal of little dogs, or a Victorian era publicity stunt?

The tomb of one of Scotland's bloody historic villains is a magnet for bumbling desecrators.

A book bound in the skin of an infamous criminal, along with countless other specimens.

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

A church that bred legends, and served as an inspiration for the Da Vinci Code.

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

One of the few remaining casualties of the London Blitz, this destroyed church has become an enchanting public garden.

The anatomical-pathological collection of a man who changed surgery.

Kings Cross Station pays tribute to its role in Britain's best-selling book series.

Winding paths and ramshackle mausoleums in the oldest "park cemetery" in London.