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

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

Two stunning 17th-century libraries and a cabinet of curiosities.

This automated sculpture of two men peeing will spell out text messages with their micturition.

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

Looming communist pillar with a Czech twist.

Macabre astrological automaton clock dating to the late 1400s.

From toys to kettles to scientific instruments, this German museum celebrates the beauty of 20th century design.

A library and shop devoted to the body, mortality, and bringing to light forgotten or neglected histories

By day this New Orleans square is for pedestrians, but by night it is a kingdom of kittens.

This charmingly homemade amusement park has been growing for 40 years.

The installation’s official name, “You Who Are Getting Obliterated in the Dancing Swarm of Fireflies,” says it all.

When you visit his grave, be sure to rub the Great Emancipator's nose for good luck.

Historic medieval fortified city in southwest France.

A massive sea stack famous for its appearance in The Goonies.

A shop full of natural curiosities, carnivorous plants, and costumed taxidermied mice.

This massive stained-glass masterpiece is thought to be the largest Tiffany dome in existence.

These aggressively sustainable art homes look like something out of 1970's science fiction.

This modest marker near Notre Dame identifies the very center of Paris.

The celebrated eyesore created by starry-eyed sweethearts.

The largest source of fossilized insects anywhere.

Victorian "Fancy Craft" Hair Wreaths and Relics.

While most of the games in this arcade take quarters, that would have been a small fortune when they were made.

The famous author's birthplace is preserved in a town that he once described as narrow-minded.