Neo-cave art on the macro scale.

A hidden world of exotic succulents and cacti.

A breathtaking array of ancient Pueblo structures and artifacts counterintuitively preserved by neglect.

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

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

Dramatic river bend surrounds a natural red-rocked pedestal.

Rippling sand dunes frozen in the Arizona rock.

Bizarre lunar-like landscape with thousands of large stone "hoodoos."

Only known mainland rookery of the threatened Stellar sea lion.

Crystal clear lake with a shoreline of travertine located in a Colorado canyon.

The largest island on the great salt lake is home to curious creatures and strange stories.

A curious sculpture garden and museum in Cochrane, Wisconsin.

Hauntingly beautiful totem poles left by the Haida.

A massive sea stack famous for its appearance in The Goonies.

Hollowed out cedar log tubs set in an ancient towering forest.

100-year-old shipwreck you can walk up to at low tide.

Oregon's unexpected high desert, displaying layers of time in a colorful show.

Rustic natural hot springs in the deciduous rain forest.

One of America's first dinosaur parks gives a window into Depression-era paleontology.

A home made entirely from scrapped, reclaimed and recycled material in Whitman County, Washington.

Native Americans built this circle of stones, which was used to predict astronomical events.

Mysterious rocks that ring musically when struck.

Hundreds of trees made from glass bottles make up this forest on Route 66.

On a barren hillside in the Yucca Valley, the recently restored Desert Christ Park has attracted pilgrims and kitsch hunters for over 50 years.