Toss a Frisbee through the ruins of this Colorado gold mining town.

A futuristic hovertrain is parked unceremoniously alongside a nondescript road.

A research lab and hands-on museum where visitors can experiment with retro technology.

This hot dog-shaped diner has moved all around Colorado, never been to New York.

This iconic science fiction house still looks like something from the future.

This interpretive path lets you get up close and personal with dinosaur bones.

Even in death, he's still your huckleberry.

This deserted Gold Rush town is home to a Masonic lodge that, strangely enough, still holds meetings.

Gleaming self-built castle towers made from beer cans and inspired by "Vitamin Mary Jane."

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

This tea house was a hand-built gift from Boulder's sister city in Tajikstan.

The superstar of Cold War nuclear bunkers has been featured in countless films but is now barely operational.

At this Denver landmark, the meals are compulsory, the sopapillas are complimentary, and the insanity is everywhere.