A coal fire has been burning underground here since 1896.

A beautiful combination of living flora with preserved bones covers the shelves of this shop.

The site of the "Bone Wars" between two rival paleontologists during the dinosaur rush of the 19th century.

A fake mine that was made using real mining techniques which is also used as a community center.

A river runs through this remote valley in a very unexpected way.

This grand stone tower was dedicated to a famed American humorist almost by coincidence.

The remains of the dam that unleashed a 15-foot wall of water on Denver.

Inspired by a music box, a small town Vietnam vet carved an entire carousel full of animals by hand.

Unlike most arches, this geological oddity formed in a volcanic dike.

Once an unstoppable source of gold and silver, this town came to a grinding stop when the groundwater proved deadly.

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.

Community owned and operated, this property is home to a diverse set of nudists.

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

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.

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

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

The largest source of fossilized insects anywhere.

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

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

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