You must take the A train... to the last active cemetery in Manhattan.

In a largely deserted ghost town, a little brick building recalls its history as a gold rush hub and haven for outlaws.

With the Wild Bunch hunted almost to extinction and the law closing in on him, Butch Cassidy fled to this remote cabin in Argentina.

A wonderful collection of all things Oz is nestled in the heart of Kansas.

Two small chapels housed inside an ancient tree.

These rustic holiday homes are made from discarded fishing boat hulls.

This surprising gem is a world-class archeological museum hidden at the University of Chicago.

Washington's top-secret Cold War-era doomsday communications tower is located in a small neighborhood park.

Cold War intelligence agents monitored communist embassies from an attic in a former pigeon coop.

A large instrument played by the wind.

Stepping away from the glitz of mobsters and casinos to learn about the other history of Vegas.

The neon signs from Las Vegas' past find their final resting place at this unusual graveyard.

Giant Redwood-themed cafeteria operates under the golden rule, "Dine Free Unless Delighted."

A bas relief commemorates the "Nuns of the Battlefield" who cared for soldiers on both sides of the conflict.

A hidden passageway now marks the site of an assassination attempt on Ronald Reagan that some say broke a 140-year-old curse.

Every day a troupe of pampered water fowl walk the red carpet to their favorite fountain.

Labor provided by Great Depression-era programs restored these 25,000 acres in Tennessee.

More than five miles of underground passageways.

This replica of the Greek structure is in the heart of Nashville.

Better known as the "Body Farm," this unique research facility has been studying how human bodies break down since the 1980s.

Wild lights and sound effects turn a walk through some caves into an eye-popping 1960s tourist attraction.

Home of an evil witch famous within southern folklore.

Enormous lake at the bottom of a unique cave system.

A fascinating aviation museum where you can chat with the veterans who once flew the aircraft on display.