When ecosystems collide in the arid Southwest.

Once an unstoppable source of gold and silver, this town came to a grinding stop when the groundwater proved deadly.

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

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

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

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

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

Wondrous sandstone hoodoos where Native Americans collected clay for pottery, 9,000 years ago.

A little-known hot spring haven right below the highway.

The superstar of Cold War nuclear bunkers has been featured in countless films but is now barely operational.

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

This Colorado hiking trail provides a small gold mine of abandoned gold mines.

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.

This "zoo" is a cross between a junkyard and a sculpture garden, featuring animals you won't see anywhere else.

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

This hot dog-shaped diner has moved all around Colorado, never been to New York.

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

Final resting place of a 19th century gold prospector and convicted cannibal.

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

Once a mortuary that held the remains of Buffalo Bill, this Denver hotspot is now a death-fixated restaurant.