The crypts of Capuchin friars decorated with the bones of over 4,000 friars, including an entire "crypt of pelvises."

This churchyard arbor is surrounded by hundreds of gravestones placed there by author Thomas Hardy.

The final resting place for the remains of 143 Habsburg royalty.

An ossuary built in 1210 to collect bones from the Ospedale Maggiore of Milan.

Milan's duomo is covered in beautiful carving including a curious "dinosaur-like" beast.

Built in 1870 at the bridge that connected Buda and Pest, this spectacular incline railway was almost lost forever during World War II.

This iconic 1,000-year-old medieval castle is a favorite of the film industry, most notably as the location for Hogwarts in Harry Potter.

Catacombs turned marketplace.

The crypt of the imposing Stephensdom holds royal intestines and thousands of skeletons.

The bunker where Hitler took his own life is hidden under this deliberately ordinary parking lot.

Early Medieval stones sit on display at the beautiful Govan Old Church in Glasgow.

A 200-year-old collection of oddities and medical paraphernalia.

This stately monument has been wearing a traffic cone hat for decades much to the delight of the locals.

Underneath this small church are 15,000 bones, arranged by an obsessive academic.

The hidden lair of an alchemist rediscovered in a 2002 flood.

This tipsy office building in downtown Prague was originally called “Fred and Ginger.”

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

A statue in the heart of Edinburgh honors a bear that served in the Polish military during World War II.

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

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

This shop and gallery is a modern-day cabinet of curiosities, unassumingly positioned along an urban thoroughfare.

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

This permanent collection of preserved bodies taken from Irish bogs is one of the leading authorities on such morbid mummies.

The modern birthplace of Irish freedom.