At the tallest peak in Colorado, an electrifying mix of thin air, lightning, and rivalry.

This nearly abandoned town was once a thriving mining community until a series of fires.

The first railway tunnel to cross the Continental Divide and, at 11,523 feet, was once the highest railroad tunnel in the world.

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

A recreation of an Old West apothecary full of curios.

Let Ouray’s tallest waterfall sweep your breath away on a dealer’s choice of scenic hikes.

The most easily accessible intact vertical mine shaft structure remaining in the Red Mountain Mining District.

This otherwise unremarkable ski town building marks the site of Butch Cassidy's first robbery.

A multicolored mineral mound dribbles piping hot spring water right off the side of a highway.

This spectacular track has run continuously since 1882.

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

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

An unconventional monument to one of America's largest landowners.

All that remains of this abandoned coal town is a beautiful, haunting cemetery.

A small wooden boat once owned by legendary actor Errol Flynn sits inside this Oklahoma gas station.

In Paris, Texas they have their own Eiffel Tower, it just has a cowboy hat on it.

Circus cemetery for all the “showmen under God’s big top.”

Once the smallest park in the national system.

What was once a summer home next to a waterfall has now become littered with graffiti and children in swimsuits.

A registered historic landmark shrouded in unsettling local legends.

This soda factory is one of the last in America to use real cane sugar despite the protestations of Dr Pepper.

Free public park and gardens filled with peacocks and peahens.

Austin’s local mountain isn’t really a mountain at all.

Home to an endangered salamander, a full moon celebration, and a large spring-fed outdoor swimming pool.