A huge collection of rocks, gems, and crystals.

Burping, gurgling geothermal mud pots by the Salton Sea.

A remote desert lookout offers unparalleled views of the California badlands for those who brave the trek.

This sun-scorched lakebed contains samples of half the natural elements known to humankind.

The location of the last stand of Charles Manson's doomsday cult.

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

While you're unlikely to find riches here these days, this remote mine is a time capsule of the Gold Rush era.

The decaying adobe remains of an old homestead are just off the beaten path in Joshua Tree National Park.

A miniature world of concrete and stone in Springfield, Ohio.

Inside this wonderland of weird, visitors are treated to a collection ranging from skeletons to haunted artifacts.

See the nearly two-century-old ruins of pre-railroad America at the former site of a lock on the Ohio and Erie Canal.

A unique collection of military history dating back to the American Revolution.

A gregarious Ohio resident has been building his whimsical temple to peace for decades.