This iconic Parisian bookstore doubles as the "Tumbleweed Hotel" for traveling writers.

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

Every hour the doors open to reenact the legend of the heroic mayor who saved his town by drinking a gallon of wine.

This fairy-tale, neo-Gothic church in the Azores is a world of magical realism.

Europe's oldest still-operational tea farm also boasts a spectacular view.

According to legend a man pooped out the window of this tower to prove that it was straight.

This small Bavarian graveyard is filled with empty graves for German soldiers lost during the World Wars.

One of the most easily accessible examples of the rare 1960s UFO houses.

King Ludwig I's collection of beautiful women.

Horrifically creative torture devices and shame punishments line the walls of this chilling museum.

A fearsome dragon clings to a corner of Munich's city hall.

Dress up like a miner and take a slide into the disco-lit depths of this once foundational salt mine.

These blingy, baubled skeletons lie in glass boxes inside a baroque Bavarian church.

The prototype for all Nazi concentration camps.

A small but immensely extravagant palace built by the "Night King."

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

The fairy tale castle of the "fairy-tale king."

This 19th century cyclorama acts like an analogue time machine to a different era.

Trick water gardens from 1619 featuring a 200 piece mechanical theater powered by water.

Famously misunderstood wonder of the ancient world

This picturesque horseshoe weir was first built in the 1600s to prevent flooding in the town of Bath.

Dedicated to the history of the 1,000 nuclear missiles that once covered the Great Plains.

Every president in history is immortalized in bronze in downtown Rapid City.

A six-ton, 12-foot-tall concrete prairie dog is touted as the largest in the world.