Olympic games belong to Greece, for sure. The last ones held in Αθήνα, Greece were in 2004. You can find two important stadiums for the Olympic games in the city: the modern Spyros Louis for the last games and the old Panathinaiko stadium (“Kallimarmaro“) for the games in 1896.
I took a look at the old one that doesn’t look like modern stadiums. It was built on the ruins of a more ancient stadium and is open on one side. It could be used by 50000 spectators. Later concerts by artists like Bob Dylan or Depeche Mode took place here.
Leof. Vasileos Konstantinou
Κεντρικό Ολυμπιακό Στάδιο
Leof. Olimpionikou Spirou Loui