This old train trestle and collapsed tunnel once allowed the railroad to negotiate the steep slopes of the Colorado Rockies.

Antique automobiles, phonographs, organs, and farm equipment.

An enthusiastically interactive mining museum that won't let black lung ruin the fun.

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

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

The final resting place of American icon Buffalo Bill, and a museum that aids in telling his tale.

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

Even in death, he's still your huckleberry.

Wall to wall taxidermy at Denver's oldest and most exotic steakhouse.

One of the greatest heroes of the Titanic tragedy came from humble beginnings to this beautiful home.

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

This spectacular track has run continuously since 1882.

Despite being one of the most photographed vistas in the Rockies these twin peaks are rightfully known as the "Deadly Bells."

At this Denver landmark, the meals are compulsory, the sopapillas are complimentary, and the insanity is everywhere.

The largest self-built castle in the U.S., six decades in the making.

This naturally-sourced hot spring is now home to a clothing-optional resort.

A breathtaking array of ancient Pueblo structures and artifacts counterintuitively preserved by neglect.

A technicolor place of worship for Elevationists.

The ancient dwellings of the Puebloans, located in the cliffs of majestic mesas.

Crystal clear lake with a shoreline of travertine located in a Colorado canyon.