From Wikipedia :
Iraklion Air Station (Iraklion AS) began operations in support of activities of the 1603rd Air Transport Wing and other USAFE liaison operations in Crete beginning on 5 October 1954. The base also supported units of USAFE and NATO as directed. The base provided administrative and logistical support to the 6931st Electronic Security Squadron, as well as policy guidance in administrative, logistical and support matters for all regular and other tenant organizations at Iraklion AS, and as well as other dispersed U.S. Department of Defense units located on the island of Crete from October 1, 1978, until the closure of the base in 1993. Iraklion AS also provided liaison and base support services for the United States Embassy located in Athens, Greece.
Since the station's closure in 1993, the facility has been abandoned and appears to have been looted and vandalized. It is in an unkempt state being taken over by weeds. Currently, an aquarium known as the Cretaquarium and an exhibition center are housed at the site.