A traveling postal dog covered 48 states and more than 140,000 miles, and he lives on as taxidermy, patched up with a rabbit's foot and a pig's ear.

A 300-yard long natural tunnel runs through a ridge deep in the Appalachian Mountains.

A table rock formation that has been intriguing West Virginians for years.

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

Hundreds of Buddhas in a re-discovered Indonesian temple.

A toxic ghost town sitting atop a massive coal fire.

World's first "penitentiary," meant to be humane, drove men insane.

America's first public mental health facility.

The Decoy Capital of the World.

Remnants of a storybook amusement park hidden behind a strip mall.

A local farm's collection of unusual structures from a now defunct storybook amusement park.