Ellinikon International Airport

Ellinikon International Airport (IATA: ATH, ICAO: LGAT), sometimes spelled Hellinikon (in Greek Ελληνικόν) was the international airport of Athens for sixty years up until 2001 when it was replaced by Eleftherios Venizelos International Airport. It is located 5mi/7km S of Athens, and just west of Glyfada. It was named after the Greek city Elliniko (Elleniko).

The airport had two terminals; the west terminal for Olympic Airways and the east terminal for international flights. Its IATA code of ATH is now used at Venizelos. It is bounded by residential houses, beaches in the west and in the south by the wooded trees of the Glyfada Golf Club along with the Ellinikon-Glyfada municipal boundary.

After its closure to passenger traffic, the northwest portions of the airport was redeveloped, with runways being converted into a sports park that housed the venues for canoe/kayak slalom, field hockey, baseball, and softball during the 2004 Summer Olympics. Other Olympic-related upgrades to the airport included refitting one of the airport's western hangars to become the main Olympic fencing venues and one of the larger Olympic indoor basketball arenas.Although these massive upgrades changed the northern and western portions of Ellinikon, part of the runway still exists and there is a chance that it will remain in use as a general aviation airport (with a significantly reduced runway). The Athens radar center is also still based there.

However, since the end of the 2004 Summer Olympics, there has been much discussion to develop what remains of the old airport and its runways into an urban park in order to alleviate Athens' need for more green spaces. If this project is realized, the proposed Ellinikon urban park would be one of the largest in Europe.