This defunct, fortress-like prison has been the setting for several movies.

This replica of the Greek structure is in the heart of Nashville.

Dinosaurs invade a suburban Nashville neighborhood.

The huge collection of paintings of the American West is one of Denver's best-kept secrets.

Once connected to the outside world by a single train track, this ghost town is looked after by the National Park Service.

A unique workspace where offices reside on pirate ships and inside gingerbread houses.

This feline raises a friendly paw at drivers barreling toward the freeway.

Explore the History & Technology of Electronic Communication

This kaleidoscopic mural shows Bob Dylan throughout his transition from young troubadour to Nobel laureate.

Wall to wall taxidermy at Denver's oldest and most exotic steakhouse.

This modern antique shop is a museum for 1980's Saturday morning cartoon culture.

Where scientists keep miles of very valuable ice from Antarctica and Greenland from melting.

A prison-like structure guards the remains of a notorious Old West outlaw.

The remains of this rugged homestead ranch offer a brief glimpse into a bygone era.

This southwestern historic site was designed and built by an artist who wanted his work to "feel at home."

Miniature art that tells an enormous story.

The most powerful laboratory radiation source in the world pulses with 1,000 times the electricity of a lightning bolt.

A pair of giant legs paying homage to a poem, a king, and it would seem, socks.

In the remote high desert of New Mexico, a strange array of poles beckon fury from above.

If drivers cross the rumble strip on this stretch of Route 66 at just the right speed it plays "America the Beautiful."

An immersive environment that is part haunted house, part choose-your-own-adventure, and part jungle gym.

This pseudo-steampunk weapons facility is the world's largest wood and glue structure, and packs quite a wallop.

This fast-food outlet is the only space and UFO-themed McDonalds in the world.

A clear blue swimming hole with hidden caves, still unexplored.