This fairy-tale castle would make Dracula (who is said to have been imprisoned there) jealous.

It was an experiment to prove that glacial boulders and rocks can be used in constructions and dwelling.

A 19th century hat factory still stands as a crumbling ruin in upstate New York.

These ruins have been linked to a sherbet factory that exploded, but the story may be entirely fictional.

A flight of this "ghost staircase" has 40 steps on the way up, but only 39 steps on the way down.

An opulent testament to the boom-and-bust history of industry in north central Indiana.

The "World's Largest Underground Business Complex," a 55,000,000-square-foot city underneath Missouri.

A peculiar mansion built by the troubled heir to the Winchester Rifle Company fortune.

This magnificent, quirky home sits atop a literal gold mine in the middle of the Nevada desert.

L. Frank Baum wrote part of the "Wizard of Oz" series in this wooden Victorian beach resort.

The San Andreas Fault spectacularly offsets this creek.

Although he donated over 3,000 acres to Los Angles, Griffith's life was marred by controversy.

This eccentrically decorated palace is replete with grottoes, fountains, tunnels, and caves.

An architect transformed this abandoned cement factory into his castle-like workshop.

The world-record holder for the longest bridge stretching continuously over water.

Hellam Township is reputed to feature seven remote gates, which when passed through in the right order, open an entrance to hell.

An Italian restaurant became a rock-and-roll hangout and the lair of the "Hollywood vampires."

This massive stained-glass masterpiece is thought to be the largest Tiffany dome in existence.

The oldest stone house in Paris was built by its most famous alchemist.

Monty Python fans will recognize this abandoned mine as the Cave of the Killer Rabbit of Caerbannog.

A miniature village lies nearly forgotten in the forest by the side of a major highway.

Castle and secret tunnel withstood a siege until its owner was killed by the Holy Roman Empire, while sitting on the toilet.

Is this statue at Naumberg Cathedral the fairest of them all?

An eerie, derelict amusement park in Berlin.