In this case, 'zero' marks the spot where the iconic Old Spanish Trail ends.

The Lowcountry color with the power to stop evil from entering a home.

A self-explanatory attraction allows fans to respectfully remember and honor a comedy legend.

Could this grave be the true resting place of legendary gunfighter "Doc" Holliday? Unclear.

Military and first responders can test their skills in a Foggy Bottom mock station down in Georgia.

The perfectly named cave drop is the deepest in the continental United States, almost matching the height of Seattle’s Space Needle.

Tucked away atop a quaint Alabama pharmacy is this tiny display of antique medical tools.

The former home of the hard partying literary power couple is now one of the only museums devoted to their story.

This geothermal hot spring hides beneath a slowly growing mineral dome.

An institution that preserves the history of institutionalization.

The lush coastal city of Astoria is riddled with forgotten secret sidewalks.

A collection of colorful dinosaurs hidden in an actual rainforest.

A tribute to the Nirvana frontman hides beneath the bridge that was the singer's beloved hangout spot.

Rustic natural hot springs in the deciduous rain forest.

Tour the original street level of Port Angeles, buried underground in 1914.

A crumbling wizard is one of the final reminders of a roadside Middle Earth.

The unedited photograph called "Bliss" has graced the screens of over a billion computers.

The largest Star Wars collection in the world is its own galaxy of collectibles.

The longest burning light bulb in the world.

George Lucas donated this park to honor the birthplace of his two biggest movie franchises.

San Francisco's newly reopened hands-on science museum.

A hard-to-reach oasis in a desolate corner of Death Valley National Park.

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

Non-profit time travel mart sells goods you would need for a trip through the fourth dimension.