Alleghe is a small village tucked between the Dolomites, a mountain range part of the Alps in Northern Italy, and is located just below the large Monte Civetta. It is now a renowned tourist destination thanks to its beautiful lake, but a tragic story hides behind this serene location. On January 11, 1771, a huge landslide broke off from nearby Monte Piz, destroying three villages and killing 49 people. The landslide obstructed the path of the Cordevole stream that runs through the narrow valley, so water accumulated below the fallen…