Standing in a state of "arrested decay," this ghost town allows for a detailed peek into Gold Rush life in an unusually harsh climate.

This symbolic piece of New Orleans architecture is also home to a few ghastly stories.

A morbid secret lies hidden within the beautiful walls of the Boston Athenaeum.

A beautiful Victorian-era cemetery, complete with a miniature village.

Tour the dark and beloved poet's former cobwebbed basement, which may have inspired "The Black Cat."

A natural gas leak provides a flickering flame beneath a waterfall.

In the middle of an extremely unforgiving and desolate high desert is the most secret military facility in the world.

This secluded aqua waterfall in the Grand Canyon is the perfect swimming hole, and the Havasupai tribe's fiercely protected natural wonder.

Paranormal experiences in this hotel's room 217 led Stephen King to write "The Shining."

These remote Florida islands have a history of sea turtles and sunken treasures, and one of the world's largest coastal brick fortresses.

The deepest lake in the United States, and once the site of epic destruction that lives on in legends.

Home of an evil witch famous within southern folklore.

Manhattan’s Battery Park has a whimsical carousel full of spinning, glowing fish.

A collection of haunted artifacts chronicles the career of the world's most famous paranormal investigators.

Crystal clear lake with a shoreline of travertine located in a Colorado canyon.

Towering basalt columns, a creation of fire and ice.

The seamy, underground secrets of Portland's criminal past.

Under the right circumstances, this waterfall in Yosemite briefly turns a luminescent fiery orange.

Try not to get slimed in Tribeca.

This Boston medical museum features the skull of the famous medical case of Phineas Gage.

The inspiration for H.P. Lovecraft's horror stories and Batman's Arkham Asylum is now a condominium complex.

A trash dump made beautiful by nature's power.

A toxic ghost town sitting atop a massive coal fire.

A bizarre house filled with an astounding array of collections.