A seven-story 1920s mausoleum outside Denver houses thousands of remains.

A mental health hospital dating back more than 139 years, now features a museum.

Open-air cremations in Colorado's self-proclaimed spiritual mecca.

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

Each year, teams of the world's best snow sculptors have 65 hours to create frozen masterpieces.

One of few remaining antique carousels with stationary animals in the U.S.

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

This museum offers an actual time machine back through Colorado's past.

Metal water storage tank turned ethereal concert hall.

A futuristic hovertrain is parked unceremoniously alongside a nondescript road.

Inspired by a music box, a small town Vietnam vet carved an entire carousel full of animals by hand.

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

The world's largest key collection features keys to the White House, Frankenstein's castle, and Hitler's bunker.

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

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

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

Gleaming self-built castle towers made from beer cans and inspired by "Vitamin Mary Jane."

At the tallest peak in Colorado, an electrifying mix of thin air, lightning, and rivalry.

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.

Abandoned silver mine strewn with wrecked and twisted structures.

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

An architect in Aspen used psychedelics as his muse while building this mushroom masterpiece.

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

The clock that sets them all.