The curious underground history of keeping Paris clean.

One part local history, 99 parts gruesome haunted house.

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

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

The fairy tale castle of the “fairy-tale king,” this was also the inspiration for Disney’s “Sleeping Beauty.”

This medieval castle overlooking the Elzbach river looks just like it did hundreds of years ago.

The birthplace of an eccentric alchemist and possible inspiration for the fictional reanimator of monsters.

A castle from the Holy Roman Empire that hosts traveling youth... in its stables.

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

The ruin of a Japanese love hotel almost completely overgrown with brambles.

The abandoned zoo enclosures offer a perfect place to experience the other side of the bars.

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

A hospital closed seemingly in the middle of operations, leaving behind fodder for horror films and ghost hunters.

World War II-era Nazi compound nestled in the Santa Monica hills.

Remants of foundations, streets, and streetcar tracks inhabit the cliffs where a landslide occurred in 1929.

This iconic L.A. bookshop is housed in an abandoned bank—both symbolic and chic.