The Acropolis of Athens is the most striking and complete ancient Greek monumental complex still existing in our times.
It is situated on a hill of average height (156 m) that rises in the basin of Athens. Its overall dimensions are approximately 170 by 350 m.
The hill is rocky and steep on all sides except for the western side, and has an extensive, nearly flat top. Strong fortification walls have surrounded the summit of the Acropolis for more than 3 300 years.