This hidden stream beneath Indianapolis makes an appearance in the best-selling novel "Underground Airlines."

This hillside mushroom farm shares land with a Buddhist monastery.

Locals call this magical moss-covered walkway the "Emerald Path."

In upstate New York, gorgeous waterfalls and a watermill are slowly being reclaimed by nature.

Nancy Thompson's Home from "A Nightmare on Elm Street."

Her final resting place was intended to be modest and private, but the power of her popularity continues to draw visitors.

A hospital closed seemingly in the middle of operations, leaving behind fodder for horror films and ghost hunters.

One of the largest trees of its kind in California.

Where beautiful signs live on forever.

You can climb to the summit of Black Mountain, as long as you sign the waiver.

Everyone and everything one man ever loved and lost, now stare into the East for all eternity.

Like Stonehenge, but with boats and oodles more charm.

A home designed to be on the cutting edge of comfortable, low-cost living.

Bronze statue marks the spinach capital of the world.

Artist Scott Hocking took a dilapidated 1890s barn to create his massive "Barnboat."

Eight rare Corvettes are swallowed up by a sinkhole in Kentucky's National Corvette Museum.

Some of Arizona's best spit-roasted tacos al pastor can be found here.

A labyrinthine underworld of tunnels and caverns hides beneath the city.

An abandoned stretch of highway, deteriorating next to the operational one.

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

It may appear to be a fancy junk yard, but each item has a story to tell and a lesson to impart.

Pittsburgh's literal underground railroad.

A restored Pittsburgh house of God has been converted to a marvelous house of suds.

The site of the worst mining disaster in Ohio's history.