A magnificent Neogothic tomb hides within this Italian fairytale-like forest.

The ruins of this medieval castle overlook the lake of Piediluco in what was once a sacred forest.

A stunning bridge that appears as if it's lunging to the shore, and has a legend of a devilish architect.

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

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

An Italian hillside ghost town.

According to the local folklore, the myriad colors of this lake are the result of a lovelorn wizard's blunder.

The tallest statue in Italy is also one of the world's tallest statues of Jesus.

The abandoned ruins of a failed resort hide on this verdant, picture-perfect island.

An Italian crevasse filled with abandoned buildings gives visitors a look at the world without humans.

Pompeii's less famous neighbor is still revealing her secrets.

A large grotto built in the 16th century amidst Florence's famous Boboli gardens.

A magnificent waterfall is also home to the remains of a Roman hydraulic engineering system.

The ruins of an abbey believed to have been founded by Charlemagne in the 9th century.

The studio built by fascists in the hopes of "reviving the film industry" with the occasional propaganda film opportunity thrown in.

More sculpture than building, this architecturally significant temple was built on the spot of Saint Peter's crucifixion.

A fairy tale castle in modern Rome.

Rome's semi-secret peephole vista is also a former Crusader stronghold.

Hundreds of lucky felines haunt the ruins where Caesar was murdered.

The crypts of Capuchin friars decorated with the bones of over 4,000 friars, including an entire "crypt of pelvises."

This demon atop the Notre-Dame de Paris looks utterly bored.

A charming flea market shop dedicated to retrofuturistic apparati.

An antique curios dealer and hybrid taxidermist.

This mural painted by Keith Haring was done without payment as a gift to entertain the children at the Hôpital Necker.