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

This French ghost town from World War II has been left as a memorial to German atrocities during World War II.

This whimsical castle of grottoes was the labor of love of a French postman, and one of the greatest achievements of outsider architecture.

This abandoned asylum in Wales might look haunted, but it's still beautiful.

This community on a small Venetian island has taken to painting their houses in bright neon hues.

Abandoned medieval hill town.

Geothermal waterfalls in Tuscany.

Venice's "Island of the Mad."

This 16th-century monastery has been turned into a surrealist architecture compound.

Renaissance villa and gardens complete with a tormented colossus.

Thousands of well-dressed mummies below a monastery.

A 16th-century horror show built in a lovely Italian garden.

These pools have been abandoned for over 20 years.

The top of society once luxuriated in this world-class hotel, which continues to impress, even in ruin.

This former fascist summer camp was abandoned for decades.

This Italian dam is covered in salt-hungry goats who manage to scale its almost vertical face.

These gutted monastery ruins still stand proudly in the middle of the Italian countryside.

This entire town moved to a safe location after it was devastated by an earthquake, but the remains of the original town are still around.

Eco-village hidden in the foothills of the Alps that created a massive system of psychedelic underground temples.

This military mausoleum captures the solemn grandeur that most memorials only aspire to.

This Tuscan lake hides a 13th century town that is still visible when the water recedes.

Gigantic mosaic sculptures of the figures on Tarot cards fill this colorful Tuscan garden.

This real life asylum of horrors is now an abandoned ruin that hides the unbreakable code to one patient's insanity.

Eighteen mummies have stood guard behind the altar of this tiny church since 1833.