A beautiful hidden gem in central West Virginia.

Bronze statue marks the spinach capital of the world.

Sail through this subterranean show cave that is home to a legend that would go on to name nearly everything around it.

Endless rows of boxes of paper records line the hallways of the archaic federal facility where guns are traced.

This abandoned dream castle and its cemetery look out over the city that once inspired their creation.

The remnants of a creative early method of wildfire prevention.

The wreckage of a deadly bomber plane crash can still be found near an Arizona peak.

This collection of neon icons is preserving Arizona's history, one sign at a time.

A mysterious "wedding cake" castle in the middle of the urban desert.

A wealth of pop culture statuary and green chile dishes give this roadside restaurant clout.

These Pre-Columbian petroglyphs contain representations of birds, deer, hunters, and even some early Native flute players.

This once-popular otherworldly landscape was formed by one of the largest volcanic eruptions in history.

A unusual sanctuary for abused and exotic animals in South Jersey.

Frank Lloyd Wright built this suburban synagogue late in life, but it stands among his most iconic masterpieces.

This Philly landmark has a giant butterfly pavilion, three floors of insect displays, and withstood a $40,000 heist.

This titanic java kettle is one of the many kitschy landmarks located along America's OTHER famous highway.

Hundreds of antiquated typewriters and office machinery show the technological evolution of business.

Beautiful stained glass depictions of the history of human flight fill this surprising chapel.

An eccentric company offers eccentric millionaires the opportunity to have spaceflight-related experiences.