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

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

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

This remote Colorado canyon is home to the second-largest collection of natural arches in the world.

The site of the notorious Camp Sumter Prison is now a peaceful memorial.

FDR hoped to find a cure for polio in this Georgia town's warm springs.

The Battle of Atlanta in 360 degrees, featuring a corpse that bears a striking resemblance to Clark Gable.

Where the famed daredevil attempted to launch himself across a canyon in a custom-built rocket.

A legal loophole makes it possible to get away with murder within this 50-square-mile section of Yellowstone.

When in Idaho, sleep in a giant potato.

The highest point in South Dakota contains the ashes of Valentine McGillycuudy, the "Holy White Man."

The former home of Samuel Clemens and family remembers the happiest period of the author's life.

A memorial to the unknown and unheralded men and women of the Cold War military and intelligence services.

A piece of the iconic wall found an unlikely new home in a Vegas bathroom.

This institution collects the history of burlesque dancing with a titillating collection of ephemera and pasties.

Tour the world's largest deep-hole dimension granite quarry, where you can view the plant where gravestones are made and roll a ball down the outdoor granite bowling alley.

Where else would a linchpin of post-colonial Native American cuisine anchor the menu but a museum?

Tour the original street level of Port Angeles, buried underground in 1914.

Essence of hound's tongue and tincture of bloodroot are just the tip of the herbalist iceberg at this beautiful, impressively-stocked apothecary.

The illuminated falls are a gem in North Cascades National Park.

This edible park is open to any and all foragers.

Couple's personal collection of pinball machines turned public pinball museum.

An easily overlooked memorial to a Ukrainian famine-genocide that killed over 4 million people.

Home to items never before seen by the public.