If you ever get a chance to visit Pompeii, I definitely recommend also making the trip to nearby Herculaneum. Pompeii is grand and impressive in its size; Herculaneum (which was an upmarket, beachside town in 79AD) is boutqiue, compact, less touristy, and for mine a much better experience and view into both life in 79AD and life the day of the eruption.