In the middle of a suburban Denver neighborhood is a cave that once provided solace for a prominent Ute chief and his family.

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

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

These decaying bridges 1,000 feet high are a reminder of the skill it took to cross the Colorado Rockies by rail.

About 80% of all U.S. avocados are descendants of Rudolph Hass's glorious tree.