It all starts in an idyllic municipality in Piedmont, dominated by a castle surrounded by a medieval hamlet. Its most unique characteristic are the subterranean wine cellars. We are talking about an extended architectonic fortune of “Underground Cathedrals” that wiggle below the entire city for about 20 kilometers (12 miles), and disappear on different levels in the viscera of tufa hills (all the way to 32 meters/104 feet underground) thus creating really suggestive scenarios: real masterpieces of engineering and architecture.