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

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

While most of the games in this arcade take quarters, that would have been a small fortune when they were made.

A small horde of mythical creatures lurk almost imperceptibly within the museum's wildlife dioramas.

The haunted reputation of these abandoned Colorado train tunnels is probably not helped by the terrifying spiked fence.

An annual festival celebrating Colorado's most famous frozen corpse.

Even in death, he's still your huckleberry.

A downtown park built on top of unclaimed graves.

The scene of one of the darkest moments in American labor history has been left essentially untouched since the tragedy.

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.

This super steep hike ascends 2,000 feet in less than a mile.

See six states, pickled freaks, rocks, and antiques.

One of the greatest heroes of the Titanic tragedy came from humble beginnings to this beautiful home.

The world's largest carnivore sanctuary is home to over 450 meat-eating rescues.

This spectacular track has run continuously since 1882.

Silver in the hills led to the speedy creation of this boom town and a lack of it saw the town abandoned nearly as quickly.

These faux-cliff dwellings allow visitors to climb around on a replica archaeological site.

When ecosystems collide in the arid Southwest.

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

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

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

The largest self-built castle in the U.S., six decades in the making.

The ancient dwellings of the Puebloans, located in the cliffs of majestic mesas.

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