An immersive environment that is part haunted house, part choose-your-own-adventure, and part jungle gym.

A towering tribute to decisiveness stands on the spot where Brigham Young and his followers decided that this must be the place.

Oddly shaped rock formation, misassociated with a nearby utopian community.

A ghost town that held steady longer than most, but finally gave up the ghost.

Here lies Lilly E. Gray, an alleged "victim of the beast," but the reason long remained a mystery.

The largest island on the great salt lake is home to curious creatures and strange stories.

This concert pavilion on the shore of the Great Salt Lake has been destroyed by fire, water, and disinterest but keeps coming back.

A small flooded ghost town with a few scattered structures remaining.

The start of the group that straightened the teeth of a nation.

An antique narrow gauge railway line still running through the Colorado and New Mexico mountains.

The burial grounds of a secret society includes fences topped with fake Tesla balls.

This 19th century jail was mainly used to incarcerate the drunk and disorderly.

This Chinese-style quartz sundial was saved in its final hour.

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

This grand stone tower was dedicated to a famed American humorist almost by coincidence.

At one time this small mining village was the highest town in America but now it sits abandoned while the mine churns on.

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

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

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

This deserted Gold Rush town is home to a Masonic lodge that, strangely enough, still holds meetings.

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

The childhood home of Henry Jones Jr. is now an adventure-themed bed and breakfast.

One woman's UFO-themed campground, complete with self-built energy vortexes, UFO-themed weddings, and magic bushes.

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