Once a lonely sentinel on the edge of the Great Plains, this rebuilt trading fort offers a glimpse of life on the Santa Fe Trail.

This 19th century jail was mainly used to incarcerate the drunk and disorderly.

An antique narrow gauge railway line still running through the Colorado and New Mexico mountains.

Air Force Academy Chapel made of 100 identical tetrahedrons works to inspire those of all religions.

Hidden beyond a kitschy giant beetle is this remarkably sprawling collection of preserved insects.

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.

There are eight natural springs around town, each with a slightly different taste.

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

A recreation of an Old West apothecary full of curios.

The largest dinosaur trackway in North America is tucked away among this canyon's ghosts and archaeological gems.

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

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

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

The spot in the Mile-High City that's exactly 5,280 feet above sea level (at least for now).

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.

The largest source of fossilized insects anywhere.

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

The Denver airport is guarded by a 32-foot-tall sculpture of a demonic horse.

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.

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

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

This Colorado hiking trail provides a small gold mine of abandoned gold mines.