When zealous marijuana enthusiasts kept stealing the "Mile 420" highway marker, the State of Colorado got creative.

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

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

While comics are the main attraction at this megastore, the second floor plays host to an exhibit fit for a museum.

Thanks to a quirk of elevation this gift shop produces magic doughnuts that are found nowhere else on Earth.

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.

When this 160-year-old church was being built, a stonemason included a hidden homage to his late daughter.

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

This church doubles a museum dedicated to Norwegian heritage.

The birthplace of a titan of American cinema.

Statue dedicated to the star of an old television show.

The unusual patterns in this rock formation result from two distinct modes of weathering.

A tunnel with windows, so you don't miss out on the impressive views.

The fifth-longest natural arch in the world, and the longest outside China.

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

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

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

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

Neal Cassady may still have an open tab at one of Denver's oldest watering holes.

Overlooking the Colorado Convention Center is this giant sculpture made from thousands of triangles.

A Rocky Mountain city provides a happy ending for a pinto pony and his Brobdingnagian red chair.

The spot in the Mile-High City that's exactly 5,280 feet above sea level (at least for now).

Legend says Dungeons and Dragons players can get their dice blessed at the creator of the game's memorial.

Home to the world's largest refracting telescope and the birthplace of modern astrophysics.