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

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

This statue of an obscure comic strip hero stands as a tribute to patriotic service and a cautionary tale about embracing fads.

On the edge of grassland in northeastern Colorado, these rock formations are some of the few remnants of a high plain that has eroded away over millions of years.

One of the oldest continuously operating amusement parks in the U.S. is an open-air museum of Art Deco and neon lights.

A renovated hotel is bringing new life to a nearly-abandoned mining town in Colorado.

No one knows exactly how deep the world’s deepest geothermal hot spring is.

See 150 million-year-old dinosaur tracks and bones dating back to the Jurassic period.

Check out a hidden collection of vintage neon signs.

All that remains of this once-booming mining town are the ruins of a saloon.

This enigmatic building features numerous architectural styles.

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

This three-mile concrete levee in Pueblo, Colorado was transformed into the world’s longest painting.

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

A futuristic hovertrain is parked unceremoniously alongside a nondescript road.

A multiversal transit station located right below a highway interchange.

These elaborate gothic monuments honor Verona's medieval lords.

A whale rib was used to advertise the store by the arch that offered exotic goods from far away.

Pilgrimage site for star-crossed lovers.

This medieval castle was reconstructed by Carlo Scarpa.

One of the tallest bell towers in Italy plays a particular melody at just two times each day.

Now housed in a museum, this giant pink elephant stood in downtown Seattle for more than 60 years.

Boats and fish both find their way through this massive hydroelectric structure.

Tacoma's historic Beaux-Arts train station is now a federal courthouse featuring large-scale glass sculptures by artist Dale Chihuly.