At this Denver landmark, the meals are compulsory, the sopapillas are complimentary, and the insanity is everywhere.

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

The highest paved road in North America winds its way up Mount Blue Sky in Colorado to an altitude of 14,130 feet above sea level.

The marker offers a rare chance to be in four U.S. states at once, though there's some controversy over its geographic accuracy.

This artsy public restroom is shaped like a giant john.

Self-built house and sculpture park where the creator can still be seen in a glass coffin.

Marking the spot where a conquistador gave up his search for the fabled Seven Cities of Gold.

It's big, it's a ball, and it's made of twine—the world's largest of its kind.

Two hundred tons of pioneer artifacts were painstakingly recovered from a shipwreck at the bottom of the Missouri River.

The highest bridge in America was built for an almost unnervingly small amount of money.

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

This tea house was a hand-built gift from Boulder's sister city in Tajikstan.

The largest hot spring in the United States is, as the name suggests, a stunning show of natural color.

One of nature's most well-scheduled phenomenons resides in Wyoming's Yellowstone National Park.

The world's largest collection of fine-scale miniatures and one the nation's largest collections of antique toys.

A wonderful collection of all things Oz is nestled in the heart of Kansas.

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

The final resting place of American icon Buffalo Bill, and a museum that aids in telling his tale.

Paranormal experiences in this hotel's room 217 led Stephen King to write "The Shining."

One of the largest underground systems runs under Canada's largest urban center.

One of the Seven Wonders of the Modern World holds the world's tallest metal staircase.

Giant, friendly pelicans in Central London, the most unlikely of places.

A "miracle" that seems to produce more holy fistfights than holy revelations.

This famous city eluded concrete detection until the early 2000's.