A recreation of an Old West apothecary full of curios.

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

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

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

The clock that sets them all.

Even in death, he's still your huckleberry.

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

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

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

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

A downtown park built on top of unclaimed graves.

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

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.

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

The largest source of fossilized insects anywhere.

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

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

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

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.

The world's largest carnivore sanctuary is home to over 450 meat-eating rescues.

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

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