The citadel of Mycenae, heart of the Mycenaean civilization, with the Lion Gate and beehive tombs — a UNESCO World Heritage Site.
The Cyclopean citadel of Tiryns, minutes from Nafplio, with the colossal walls already admired in Homer's day.
The imposing Venetian fortress of Palamidi above Nafplio — 999 steps and panoramic views over the Argolic Gulf.
The ancient theatre of Epidaurus, famed for its perfect acoustics and still alive each summer with performances.