From PBS - Italy's Thriller Mountains explores the fascinating geologic story of Italy, the land recognized for its fabulous artwork, implausible meals, opera, the dolce vita, and a lot extra. What's much less recognized about Italy is the range and turbulence of the geology behind all of this abundance: the constantly erupting volcanoes, the violent earthquakes, the conflict of mighty tectonic plates, and the rising of the mountains from which Michelangelo sourced his well-known marbles.