Nympheum
A large and decorated fountain, fed by an underground water source which still flows. The fountain represents in itself a complex structure; it had a wall which collected all the waters that sprang from the earth, and four other aqueducts.
It is one of the most interesting monuments in Apollonia and, paradoxically, less known, built in the Hellenistic period, around 250 BC.
It was known in antiquity as the Fountain of Cephisus. It was supplied with water from a dammed spring at the base of the acropolis. The water from the spring, after being contained in a structure 70m long, was piped into a large central basin surrounded with five Doric columns.
This architectural achievement had a short life because, after only a century, it was overwhelmed from a large landslide. It is in a good state of preservation, largely thanks to being covered with debris after an earthquake in 4C AD.