Giant, natural amphitheaters made of delicate geological formations called "hoodoos."

This site is home to ancient petroglyphs and pictographs dating back to 6,000 B.C.

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

For over a century, it has been a tradition to raise a flag at the top of this 450-foot sandstone pillar on the 4th of July.

The temporary burial site of the man who shot and killed Jesse James.

Take a self-guided tour through one of Colorado's most elevated mining districts.

The site of the gruesome massacre—and maybe cannibalism—of five men, a tragedy that made Alferd Packer infamous.

Only a few signs remain of the buried Colorado mining town that supplied the uranium for the first atomic bomb.

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

A remote sandstone plateau named for a legendary cattle rustler.

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

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

Located in the world's highest-altitude Dark Sky Community, this observatory welcomes amateur and professional astronomers alike.

The decaying ruins of a failed mining company’s water diversion project cling to the side of a desert canyon.

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

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

It would be easy to walk past this unusual piece of art and have no idea it pays tribute to the odd life of a real chicken.

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

A lively annual event in which thousands of people race to push coffins heavy with bodies up a hill.

Final resting place of a 19th century gold prospector and convicted cannibal.

Two creeks flow out of either end of this canyon in opposite directions.

A river runs through this remote valley in a very unexpected way.

There are eight natural springs around town, each with a slightly different taste.

This iconic science fiction house still looks like something from the future.