Under the terraces, archaeologists have identified elements of mechanical and advanced metallurgy that compete with the impressive exterior of the Greek pyramid. Archaeologists from three different countries who participated in the excavations also found evidence of a drainage tunnel complex estimated to have been built 1.000 years before the famous Mycenaean palace system of
Knossos in
Crete. Excavations will continue and the network of drainage tunnels will be studied to find out if this network was used for water supply or sewage.