A recreation of an Old West apothecary full of curios.

One of the largest Buddhist stupas in North America is built of concrete designed to last 1,000 years.

The moving metal works of one troubled artist can still be viewed on his front lawn... for now.

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

While most of the games in this arcade take quarters, that would have been a small fortune when they were made.

The clock that sets them all.

The spot in the Mile-High City that's exactly 5,280 feet above sea level (at least for now).

Even in death, he's still your huckleberry.

The wreckage of a World War II bomber is hidden high in the Colorado wilderness.

This museum offers an actual time machine back through Colorado's past.

A downtown park built on top of unclaimed graves.

These decaying bridges 1,000 feet high are a reminder of the skill it took to cross the Colorado Rockies by rail.

The scene of one of the darkest moments in American labor history has been left essentially untouched since the tragedy.

A collection of fading fantasy tchotchkes lines this dirt road in the Colorado wilderness.

The world's largest key collection features keys to the White House, Frankenstein's castle, and Hitler's bunker.

The haunted reputation of these abandoned Colorado train tunnels is probably not helped by the terrifying spiked fence.

At the tallest peak in Colorado, an electrifying mix of thin air, lightning, and rivalry.

The childhood home of Henry Jones Jr. is now an adventure-themed bed and breakfast.

The largest source of fossilized insects anywhere.

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

A small horde of mythical creatures lurk almost imperceptibly within the museum's wildlife dioramas.

See six states, pickled freaks, rocks, and antiques.

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.