A tall smoke stack and boarded-up buildings are all that's left of the pioneering plant.

In the middle of a busy airport, a statue honoring the astronaut who told Houston that Apollo 13 had a problem.

Once named the “world’s oldest gas station” due to its unusual construction material.

This stone marker honors the man who released Canada goose goslings in Fort Collins, Colorado.

These half-buried combine harvesters just off Route 66 are an homage to the Cadillac Ranch.

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

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

A surprising collection of bronze faces beneath a bridge in Loveland.

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

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

A futuristic hovertrain is parked unceremoniously alongside a nondescript road.