Dramatic river bend surrounds a natural red-rocked pedestal.

One of the oldest reform schools in the United States, home to wayward boys such as Merle Haggard, now abandoned.

An underground mansion with fruit-bearing trees and grapes growing beneath the surface of central California.

Explore 10 acres of environmental sculptures.

This abandoned Navy base was transformed into an off-grid alternative living community for thousands of people.

The Magical World of George Phar Legler.

An abandoned facility that has become a place of ritualistic satanic worship, or so rumor has it.

A self-built castle made by a mysterious man.

An urban laboratory.

Rippling sand dunes frozen in the Arizona rock.

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

Outsider Art Community.

Exotic feline breeding compound and conservation center.

One of the most unusual geological features, recognizable from a dozen hit movies.

This impressive tunnel was dug entirely by hand over the course of 36 years.

Odd outsider art installations surround a Gold Rush-era ghost town.

The rocks in this arid basin leave trails of movement behind them.

Explore the largest pure gypsum deposit in the world, and go dune sledding while you're at it.

The second-largest cave chamber in the world was discovered in 1898 by a 16-year-old and a friend known as "Pothead."