Although now a decaying ruin, this stone cabin's history includes several notable figures.

A sharp bend in a dramatic river canyon cut through red rocks.

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

It is the only marker for one of the most famous hate crimes in American history. There are no other memorials for him in the entire state.

For 14 years, this former stray dog greeted every train passenger that arrived in Fort Collins.

One of the smallest towns in the United States.

Miraculous tree that seems to sprout out of solid rock.

The high point on the 16th president's eponymous roadway is marked by a massive version of his head.

A monument to the egos of two railroad magnates that fell into decline along with their careers.

This 19th-century house museum features a horse-drawn hearse and other antique oddities.

This fully restored synagogue explores the American Jewish experience along the old frontier.

Once an unstoppable source of gold and silver, this town came to a grinding stop when the groundwater proved deadly.

The remnants of the base where US Army troops learned how to fight in extreme conditions.

Thousands of unmarked, sunken graves in a pauper's cemetery.

This 38-drawer structure claims the superlative title, but it isn't the world's only giant filing cabinet.

A dangerous narrow-gauge railroad once traced a route through this striking canyon.

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

When ecosystems collide in the arid Southwest.

Strange red rock formations that have been attributed to a higher power for hundreds of years.

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

A multiversal transit station located right below a highway interchange.

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

The final resting place of the controversial chess champion.

This eye-popping Icelandic crater lake is surrounded by red volcanic rock.