Reclaimed material from a convent destroyed by cannonfire was used to build parts of this 19th-century cemetery.

The hidden "ballroom" under a mansion lake was built by a criminal who ate a cyanide pill during his trial.

A historic gristmill that still produces flour and grits the old-fashioned way.

One of the few remaining casualties of the London Blitz, this destroyed church has become an enchanting public garden.

This kitschy tavern is also home to rare early editions of "Treasure Island."

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

Stepping away from the glitz of mobsters and casinos to learn about the other history of Vegas.

The world's only international cryptozoology museum is host to an unrivaled collection of mysterious objects.

The abandoned "Ghost Mansion" was left to decay in the mountains of Northern Italy.

The atmospheric road was never meant to be so creepy.

To get to or from this Canadian ghost town, you'll need to cross 11 single-lane bridges.

If there's another drive-through golf-cart bar in a bat-filled cave on top of a mountain, we don't know about it.

A 315-foot spire jutting out from the Blue Ridge Mountains makes for breathtaking views.

This Central New York ghost town was once a prosperous railroad community.

An idyllic mineral hot springs facility with a more-than checkered past.

The ruins of a resort and casino sit on the banks of this blue hole spring that pumps 70,000 gallons of warm, clear water every minute.

A battle between nature and architecture in the Cambodian jungle.

Ninety feet off the valley floor is an ancient dwelling put under protection of the U.S. government by Teddy Roosevelt.

The remains of an idyllic small town built for the film 'Big Fish' still stand around a rundown main street.

This ghost town houses the remains of Alabama's old state capital.

Time stands still at this serene burial ground in the center of Budapest.

This off-beat, quirky communism-themed bar isn't afraid to poke fun at its history.

This Hungarian castle was built out of cardboard and wood until it proved so popular that it got upgraded to stone.

A series of caves under Castle Hill that once held the prisoner Vlad Tepes, better known as Count Dracula.