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

London's creepiest cemetery was once the site of dueling magicians and mobs of stake-carrying vampire hunters.

A remarkably opulent mansion with a tragic history.

A subterranean haunt where wine and homemade biscottis are always on the menu.

A 35-foot-tall fork stuck in the ground outside an office building in Missouri.

Giant granite rocks standing end-to-end like a train of circus elephants.

The world's largest man-made underground caverns offer unparalleled underwater wonders.

Once an ambitious nature spa, these forest ruins now provide a serene monument to failure.

A tiny racehorse graveyard in the middle of a quiet Kansas City suburb.

Stories of sightless fish and ghostly cowboys are only a fraction of the legends surrounding this Kansas sinkhole.

In rural Iowa, an imported 19th-century windmill overlooks an unlikely enclave of Danish culture.

A small burial plot formerly stranded in the middle of a road.

While there are no actual snakes in the history of this crooked road, there may be a number of dead horses.

A pop-culture attraction outside of Dyersville, Iowa, hits a home run.

A giant pair of thick black glasses mark the tragic demise of a trio of rock and roll legends.

A warning to the weak-kneed: This narrow bridge does its swinging eight stories high.

A half-mile long and three stories high, this bridge over the Des Moines River Valley mimics a descent into a mine shaft.

Storybook cottage in Beverly Hills was once the site of 1920s silent film studio, affectionately known as "The Witch's House."

A beautiful footbridge with over 2,000 glass sculptures along the walls and ceiling.

A well-preserved medieval village nested on a rocky outcrop and surrounded by a network of cliffs, natural bridges and canyons.

The mysterious, fantastical woodland inspiration for "The Lord of the Rings."

The overgrown remains of an old rail bridge rise above the valley like ancient Greek ruins.

The tragic reality of a town riddled with rumors of haunts, chemical spills, and serial killers.

This 19th century mansion façade adorned with immigrant patriotism is a symbol of Louisville’s history.