
Over the centuries several buildings were added to the south slope below the Acropolis, including the Asklepieion, the Theatre of Dionysos, the Odeion of Herodes Atticus and the Stoa of Eumenes, a colonnade which connected the two theatres. Several other temples, sanctuaries and other monuments, such as the choragic monuments of Thrasyllos and Nikias, were also built here.
Immediately below the Parthenon was the Sanctuary of Asklepios, the Greek god of healing and son of Apollo.
Sanctuaries to the god were also centres of healing. The cult of Asklepios was brought to Athens from its largest centre at Epidauros in the Peloponnese around 420 BC, during a period in which the cult and a renewed interest in medicine were spreading all around the Hellenic world.