Ecosystems in Arizona

An off-the-beaten path cave with an underground lake.

This small memorial is dedicated to the Perryville State Prison firefighters who perished fighting the Dude Fire in 1990.

In a 345-million-year-old cave that's 200 feet underground, dinner awaits.

This oasis-like spring in the Sonoran Desert is home to unique, endangered species.

This old selenite mine is dotted with tiny crystals that make it shimmer like it's covered in glitter.

Legend says train robbers stashed their gold within the depths of this unusual cave.

Witnessing the might of this dessert-colored desert waterfall is a rare, powerful treat.

The remnants of a creative early method of wildfire prevention.

The largest copper mine in Arizona, this enormous open pit emerges from the hills like an alien landscape.

This 40-room dwelling tucked within a cliff was built by the basin's prehistoric residents.

A Saint Nicholas-themed ghost town in the Mojave desert.

Some of the tallest ancient American ruins continue to inspire awe and curiosity.

One of the largest, oldest, darkest, quietest motel rooms in the world.

Limestone caves with spectacular showcase chambers.

The story of Two Guns, Arizona could easily be described as a Shakespearian tragedy on Route 66.

A stealthy Apache hideaway that became the haunting site of a mass grave.