This museum preserves over-the-top masterpieces that once qualified artisans for membership into a medieval guild.

One woman's decades-long obsession with the "La Fée Verte."

Walk through spectacular aisles of hanging meat and wagon wheel–sized cheese at the world's largest wholesale food market.

This museum promotes informed contraception by documenting its often secret past.

Terrifically morbid cemetary and site of famous Paracelsus' grave.

This cubist Vienna church building looks like some sort of alien stonehenge.

Swarovski's museum/theme park is a fake diamond fantasia overlooked by a giant.

What was once thought to be a wellspring of unicorn bones is actually just a prehistoric burial site.

This Nazi-built amphitheater was constructed on a sacred mountain site used by various German cults.

The prototype for all Nazi concentration camps.

No need to strap in for a "ride" on this walkable roller coaster.

Soaring over 6,000 feet in the Bavarian Alps, this beer garden was once Hitler's 50th birthday present.

"The most colorful grottoes of the world.

A striking 12th-century-style castle built on the edge of a cliff.

A sprawling Baroque park with 300-year-old hydro-pneumatic waterworks.

A swath of France so devastated by war it is still forbidden to go there.

The sunken structure looks like the victim of a catastrophic flood.

Do these monsters look familiar? The gargoyles on this church are all from pop culture.

A 200-year-old tavern challenges guests to finish a glass of wine while hanging from a ceiling beam.

This simple apartment may have inspired some of the most important theories in the history of science.

A spherical "micro-nation" in the heart of Vienna.

This Budapest bar allows drinkers to leave their mark on the walls, floor, and even ceiling.

The most gigantic, swoony, intimidating trio of fingers in all of antiquity.

Gladiators battle and chariots race daily in the ruins of a once-great Roman city.