The Pythagoreion is named for the mathematician Pythagorous, whose birthplace is nearby. Other remains inbcluse the castle and Temple of Thermes, the Spiliani Monastery and the Eupalinos Tunnel (currently closed for restoration).
The Heraion is named for a Temple dedicated to Hera, wife of Zeus. However this has since been overlaid by other Greek, Roman and Christian constructions, none of which appeared readily identifiable.