Grotta del Vento
About 14 km (9 miles) southwest of Barga, after following a winding road flanked by both sheer cliffs and fantastic views, you come to Tuscany's Cave of the Wind. As the result of a steady internal temperature of 10.7°C (about 51°F), the wind is sucked into the cave in the winter and blown out in the summer. It has a long cavern with stalactites, stalagmites, "bottomless" pits, and subterranean streams. One-, two-, and three-hour guided tours of the cave are given. (The one-hour tour is offered only from November through March.)