Messini
Set overlooking a beautiful green valley, magical Messini is one of the most underrated archeological sites in Greece. Only a third of it has been excavated so far, but what has been uncovered is seriously impressive, including a grand ancient stadium, a 10,000 seater theatre and a fortified wall. It’s so well-preserved that it’s easy to imagine life here as it once was, made even better by the fact that the site is devoid of crowds.
Mycenae
Mycenae was built towards the end of the Bronze Age and it swiftly became one of the mightiest cities in Greece. Tours of Mycenae let you walk through the monumental Lion Gate before entering the ruined realm of King Agamemnon. Nearby Nafplio offers easy access to Mycenae, plus it has the bonus of its very own Venetian fortress.
Olympia
The site of the ancient Olympic Games was founded in the 8th century BC and could seat up to 40,000 spectators who'd come in droves to watch athletes battle it out, with chariot racing in the purpose-built hippodrome a particularly big draw. Key sites include the Temple of Zeus (built later in 5th century BC), the Temple of Hera, the Olympic flame altar and the antiquities held within the Archaeological Museum of Olympia.