Endless Caverns: An Underground Journey into the Show Caves of Appalachia

For generations, enterprising people in the southern Appalachians have turned the region’s extensive network of caves into a strange, fascinating genre of tourist attraction. Visitors pay admission to take a tour deep underground, learning a little about history and geology while puzzling over lit-up rock formations said to resemble anything from Niagara Falls to the Capitol dome. Then off go the lights, enveloping the travelers in total darkness — until the guide flips them back on and wel...