* The Acropolis of Athens, which includes the Parthenon, Erechtheion, and Temple of Athena Nike.
* The Ancient Agora of Athens, which was the political, commercial, and social center of ancient Athens.
* The Delphi Archaeological Site, which includes the Temple of Apollo, the Delphi Theatre, and the Castalian Spring.
* The Olympia Archaeological Site, which includes the Temple of Zeus, the Heraion, and the Olympic Stadium.
* The Epidaurus Theatre, which is an ancient amphitheater known for its remarkable acoustics.