These otherworldly limestone formations jut out from the Kansas prairie.

A cannon designed to fire an atomic warhead.

The holiday spirit lingers year-round in the "Christmas City of the High Plains."

Once a mortuary that held the remains of Buffalo Bill, this Denver hotspot is now a death-fixated restaurant.

The final resting place of a 19th-century gold prospector and convicted cannibal.

The remains of the dam that unleashed a 15-foot wall of water on Denver.

Wondrous sandstone hoodoos where Native Americans collected clay for pottery, 9,000 years ago.

The site of a minor battle might have been forgotten if not for one participant’s famous family and the death of a respected warrior.

A tiny nondenominational church harkens back to the days of the first homesteaders in the region.

In a small Japanese garden off a busy Denver street, a memorial to a brave, principled politician.

In a dry, neglected cemetery lies the unassuming grave of a soldier vilified in life but celebrated in death.

An innovative local park built from an abandoned sewage treatment plant.

This Chinese-style quartz sundial was saved in its final hour.

This was once the home of Gahan's Saloon, Denver's most storied speakeasy.

The oldest operating cemetery in Denver is the eternal home of some of the Centennial State's most famous residents.

A downtown park built on top of unclaimed graves.

A floating museum that was sunk by a flood and left to rot in the tides.

An extensive collection of fine art devoted to man's best friend.

This museum located in the "Corn Cob Pipe Capital of the World," chronicles the history of cob pipe.

This museum presents a dogged pursuit of 500 years of veterinary history.

A museum devoted to osteopathy and its creator, Andrew Still.

The only remaining Cold War–era Minuteman II missile control center in Missouri.

This spot in St. Louis, marked with a simple sign, has seen more pro baseball than just about anywhere else in the world.

A wax effigy of St. Valentine hides one of the saint's relics.