A church of bones, decorated with 40,000 human skeletons.

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

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

A working steam clock, one of only a few in the world, located in Vancouver's Victorian Gastown.

This expansive bridge in the Canadian wilderness was originally just built for friends.

A king's pet, a pope's gift, an artist's inspiration, and a tragic shipwreck.

This eccentrically decorated palace is replete with grottoes, fountains, tunnels, and caves.

Legacy of the earthquake that nearly wiped Lisbon off the face of the Earth.

Self-mummified monk who wears sunglasses and has become a gecko hatchery.

This chimerical bridge/tunnel appears to dead end right into the sea.

The site of a concentration camp where inmates were made to take part in one of the largest counterfeiting operations in history is now hauntingly empty.

Beneath Denmark's Højbro bridge, a bronze merman and his seven sons forever mourn for the mother and wife who left them for land.

The old observatory in Copenhagen has a spiral corridor used as a racetrack.

Opulence and fantasy collide in this royal chair which is supposedly made with unicorn horns.

Cold war icon and onetime "hole" in the iron curtain.

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

Famously misunderstood wonder of the ancient world

Over 12,000 hygiene oriented objects and exhibits.

Gothic tower where Lord Alfred Tennyson wrote the poem "The Sleeping Beauty."

This courtly monument celebrates an influential comedian who turned taking the piss out of the powers-that-be into an art.

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

This ritzy Italian market is built around a statue of an unforgiven heretic who was burned for his belief in an endless universe.

Hundreds of lucky felines haunt the ruins where Caesar was murdered.

Synagogue built from the stones of Solomon's temple contains the golem of Prague.