An inconspicuous footbridge beloved by San Diego locals.

Once owned by the largest employer in Colorado, these ovens have been abandoned for over a century.

This open-air reconstruction of an Old West town, a cross between a theme park and a museum, provides an immersive historical experience.

This Rocky Mountain mansion was the luxurious home of the authoritarian leader of a company town.

This unassuming building houses one of the world's most extensive collections of cars created by automotive legend Carroll Shelby.

Above Breckenridge, a destructive mining technique sits sunken in a small pond.

The site of a defunct mill, that once supplied marble for the construction of the Lincoln Memorial.

Overlooking the Colorado Convention Center is this giant sculpture made from thousands of triangles.

Take a dip in the world's largest mineral hot springs pool.

A glimpse of a waterfall is reached by a steel catwalk along a slot canyon located in an Ouray city park.

Each year, teams of the world's best snow sculptors have 65 hours to create frozen masterpieces.

This now-abandoned outcrop is an important Native American spiritual site, overtaken by European settlers and mining pollution.

A hotel with a rich Wild West history of miners and bootleggers.

Isak Heartstone, a 15-foot wooden troll made out of recycled materials.

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

Travel through the wholesome amusements of yesteryear at this charming miniature village.

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

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

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

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

This tea house was a hand-built gift from Boulder's sister city in Tajikstan.

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

This spectacular track has run continuously since 1882.

When ecosystems collide in the arid Southwest.