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

An impressive collection of over 50,000 minerals including moon rock from the Apollo 17 mission.

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

In the middle of a suburban Denver neighborhood is a cave that once provided solace for a prominent Ute chief and his family.

Even in death, he's still your huckleberry.

The clock that sets them all.

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

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

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.

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

This Boeing KC-97 tanker is now a restaurant for aviation lovers.

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

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

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

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

Silver in the hills led to the speedy creation of this boom town and a lack of it saw the town abandoned nearly as quickly.

The highest paved road in North America winds its way up Mount Blue Sky in Colorado to an altitude of 14,130 feet above sea level.

Rather than a run-of-the-mill franchise hotel, this lodging has been decked out in dinosaur decor.

Colorado's only true geyser is hidden within the San Juan National Forest.

These faux-cliff dwellings allow visitors to climb around on a replica archaeological site.

A little-known hot spring haven right below the highway.

Abandoned silver mine strewn with wrecked and twisted structures.

This spectacular track has run continuously since 1882.