Found: Garden of Eden in Miami-Dade County, Florida.

Wading through a small lagoon reveals a secret, wild stretch of pristine beach.

This 140-year-old beacon off the Florida Keys marks the wreck of a Navy ship that once roamed the Caribbean hunting pirates.

One of the world’s largest and deepest freshwater springs, where mastodons once roamed.

An underwater statue of Christ blesses the depths off Key Largo.

A secret, rocky playground hidden amongst the plain white beaches of the Florida coast.

The scuba diving training facility was named for the steam that rises from the cave's chimney.

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

More than 300 years ago, a revolt at this Hopi pueblo shaped the future of the American Southwest.

The eroded core of an ancient volcano is now accessible by a short hike.

The world's largest military aircraft cemetery.

An urban laboratory.

A secret fresh water spring for animals and humans alike hidden along the most famous road in the United States.

The highest point in Arizona is an oddly snow-topped peak within the otherwise arid state.

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

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

Eons ago, a rushing lava river formed this pristine passage through solid rock.

See massive fossils that are over 200 million years old in northeastern Arizona.

A self-built castle made by a mysterious man.

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

Ninety feet off the valley floor is an ancient dwelling put under protection of the U.S. government by Teddy Roosevelt.

This secluded aqua waterfall in the Grand Canyon is the perfect swimming hole, and the Havasupai tribe's fiercely protected natural wonder.

Dramatic river bend surrounds a natural red-rocked pedestal.

Most-visited and most-photographed slot canyon in the American Southwest.