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.

While comics are the main attraction at this megastore, the second floor plays host to an exhibit fit for a museum.

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

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

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

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 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.

A downtown park built on top of unclaimed graves.

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

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

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

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

One woman's UFO-themed campground, complete with self-built energy vortexes, UFO-themed weddings, and magic bushes.

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.

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.

This super steep hike ascends 2,000 feet in less than a mile.

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.

An architect in Aspen used psychedelics as his muse while building this mushroom masterpiece.