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

The vast, legendary catacombs hold secrets much stranger than stacked bones.

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

A majestic lion statue guards this Parisian botanical garden, and feeds on an unsettling item.

Medieval museum built over Roman baths that features famous tapestries of a lady and a unicorn.

With a history of slaughter, feast, and famine, remnants of the pork industry decorate this area--even its church.

Despite attempts by local police to discourage it, Beatles-inspired graffiti has been a means for artists to air grievances for decades.

Increasingly decayed figures stand as a powerful reminder of the human costs of Czech Communism.

Steadily reminding Czechia of its past.

Around 100,000 bodies are buried below the medieval headstones, many of which mark graves with multiple bodies stacked up to 12 deep.

Macabre astrological automaton clock dating to the late 1400s.

Tiny communists hammer away on the Olomouc Astronomical Clock.

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

One of the tallest buildings in Iceland, and perhaps, the most visually impressive.

Stockholm's decidedly unique public transit system has doubled as the world's longest art gallery for decades.

It houses the remains of a 17th-century version of the Titanic.

Quirky castle designed by the American actor best known for portraying Sherlock Holmes on stage.

Home of Philip Johnson, one of the 20th century's most influential architects.

A museum designed by and dedicated to P.T. Barnum in the town where he is buried.

The once abandoned ruins of a Victorian beachside amusement park are now back in working order.

This "thrice-cursed" island is allegedly home to Captain Kidd's lost treasure.

Remains of Roman amphitheater hidden in a sleepy quarter of Paris.

19th century pendulum and a clock restored by a rogue group of guerilla artists.

The celebrated eyesore created by starry-eyed sweethearts.