Toss a Frisbee through the ruins of this Colorado gold mining town.

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.

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

A futuristic hovertrain is parked unceremoniously alongside a nondescript road.

In the early 1900s, hundreds of Black Americans found opportunity in this now-abandoned rural community.

A mental health hospital dating back more than 139 years, now features a museum.

Small teepee-like houses built for TB patients have become sheds, studios, and bus stops around Colorado Springs.

An annual festival celebrating Colorado's most famous frozen corpse.

Climb to the top of this spiritual tower, and you'll be rewarded with spectacular views.

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

A recreation of an Old West apothecary full of curios.

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.

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

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

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

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

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.

A downtown park built on top of unclaimed graves.

The largest source of fossilized insects anywhere.

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