Four hundred granite steps were built into this massive rock by the National Park Service.

This abandoned boat was left in place thanks to its rotting beauty.

Get up close to emus and ostriches, or buy their tasty meat.

The largest dune field in the Mojave offers a chance of hearing the 'singing sands.'

The last remaining relic of San Francisco's glittering 1915 Panama Pacific Exposition.

These delicate buggers are some of the rarest fossils that have bubbled up from the Tar Pits.

Aqueducts have dramatically changed this old lake, now home to tufa towers and its very own species of tiny brine shrimp.

A peculiar mansion built by the troubled heir to the Winchester Rifle Company fortune.

The highest point in Tennessee, Clingmans Dome bears witness to the ravages of one type of insect.

The highest point in Texas is capped by a big silver pyramid.

Steep canyon walls hide a forested oasis in the West Texas desert.

Once in disrepair, this popular Texas stop along iconic Route 66 has been restored to its past glory.

The Grand Canyon of Texas.

An enormous pink granite batholith, long attributed with spiritual powers by the Tonkawa Indians.

A sculpture made of 10 Cadillacs as a monument to the "Golden Age" of the American automobile.

Known as one of the most climbed mountains in the world, this barren peak is permanently bald thanks to an anti-wolf fire.

Even Henry David Thoreau found this glacial pothole irresistible.

Ironically this massive termite is the mascot for a company that is acclaimed for killing his kind.

This little slice of old Jerusalem in Oklahoma is the evolution of a 90 year old passion play.

A clear blue swimming hole with hidden caves, still unexplored.

Quite simply the largest tree in the world (by volume).

In all of the 29 years it was in operation, no prisoners ever escaped successfully... or so they claim.

Curious rock formations in a tiny Kansas state park.

Marking the spot where a conquistador gave up his search for the fabled Seven Cities of Gold.