Mount Vesuvius, located near Naples in Italy, is an active volcano infamous for its eruption in AD 79 where it completely destroyed the Roman cities of Pompeii and Herculaneum. Two handwritten letters by Pliny the Younger are the only remainders of eyewitness accounts from the event.
The volcano currently remains a threat and is located in a densely populated volcanic region of the world. The eruption from 79 Vesuvius has erupted many times. It is the only volcano on the European mainland that erupted within the last hundred years. The last eruption occurred during the World War Second in 1944.