The world's longest known cave system.

A local scoured more than 1,000 acres for stone to create his masterpiece.

One of the few surviving "Wigwam"-themed motels.

The remains of this visionary community can still be found much as it was a century ago.

Eight rare Corvettes are swallowed up by a sinkhole in Kentucky's National Corvette Museum.

Once one of the most polluted caves in America, now an environmental success story and a museum dedicated to caves.

Prehistoric animals decorate this popular outdoor park.

A former 19th-century tavern, famous for its peach brandy and honey concoction.