Wedding chapel's mysterious spiral staircase said to be miraculously constructed.

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

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

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

An impressive collection of over 50,000 minerals including moon rock from the Apollo 17 mission.

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

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

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

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

A downtown park built on top of unclaimed graves.

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

Travel through the wholesome amusements of yesteryear at this charming miniature village.

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

Hidden beyond a kitschy giant beetle is this remarkably sprawling collection of preserved insects.

Air Force Academy Chapel made of 100 identical tetrahedrons works to inspire those of all religions.

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

Small teepee-like houses built for TB patients have become sheds, studios, and bus stops around Colorado Springs.

Hidden beneath a bridge, this waterfall is known for the large amounts of graffiti painted on its base.

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

There are eight natural springs around town, each with a slightly different taste.

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

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