Mount Vesuvius, Italy
Mount Vesuvius is a dormant volcano overlooking the Bay of Naples in Italy just five miles east of Naples. It's perhaps best known for erupting in AD 79, destroying the Roman cities of Pompeii and Herculaneum. It has erupted many times since and is considered one of the most dangerous volcanoes in the world because of the large population living nearby and its propensity for explosive eruptions.
Google Earth coordinates:
40° 49'18.93" N, 14° 25'30.98" E.