The Odeon, also called Herodeion or Herodion, is an impressive Roman theater located on the southwest slope of the Acropolis. The structure was built in AD 161 by Herodes Atticus in memory of his wife but was destroyed and left in ruins in 267 AD. Renovated in 1950 with a capacity of 5,000, it is now used as a musical venue by many contemporary acts and is the main venue of the Athens Festival. You can see the front exterior from Acropolis Park but, if you're going to the Acropolis, you can get a really good view of the entire theater while climbing / walking up to the Acropolis. (PaM)