The Acropolis is a rocky limestone hill rising 156 metres above the city, and the buildings on its summit are among the most influential ever constructed. The Parthenon (447–432 BC) dominates — a Doric temple of extraordinary mathematical precision, built in honour of Athena and once containing a 12-metre gold-and-ivory statue of the goddess. Alongside it, the Erechtheion carries its famous porch of six caryatid figures (one is a copy; the originals are in the Acropolis Museum below). The small Temple of Athena Nike guards the entrance ramp.
Arrive at opening time — 8am in summer — to get ahead of the cruise-ship groups. The ticket covers all the sites of the unified Acropolis area: the Theatre of Dionysus and the Odeon of Herodes Atticus on the southern slope are included. A combined ticket also covers the Ancient Agora, Kerameikos, and several other sites and is valid for five days.
Wear proper footwear. The marble on the summit is extraordinarily slippery when wet and difficult even when dry.