Athens. Greece. View of the Odeion of Herodes Atticus situated on the south slope of the Acropolis. The Odeion or Theatre was built in 161 AD by the wealthy Herodes Atticus, a teacher and philosopher, in memory of his wife Regilla, it dominates the SW slopes of the Acropolis with its three-storeyed stage building and steeply sloped semicircular auditorium or cavea. Filopappos, a Syrian prince and benefactor of Athens, had his Pentelic marble monument built directly facing the Acropolis in 114-6 AD.