This Mycenaean acropolis, 4km north of Nafplio, is the apogee of Mycenaean architectural achievement. Legend has it that its massive walls, 7m thick in parts, were built by a cyclops. You can stroll around the immense stonework and explore the Upper and Lower Citadels, but the vaulted passageways, the secret stairway and the impressive gallery are off-limits.
Any Nafplio–Argos bus can drop you outside the site.
Built in the 13th century BC, this World Heritage site in its heyday was second only to Mycenae in terms of regional importance. The layout of some of the ruins is easy to make out, and there are few crowds. The site has little in the way of signs or descriptions, so it’s worth buying Tiryns (by Dr Alkestis Papademetriou; €8), at the ticket office.