The Acropolis of Athens (; Akrópoli Athinón) is an ancient citadel located on a rocky outcrop above the city of Athens, Greece, and contains the remains of 2.5 ancient buildings of great architectural and historical significance, the most famous being the Parthenon. The word Acropolis is from the Greek words ἄκρον (akron Antisamos, "highest point, extremity") and πόλις (polis, "city"). The term acropolis is generic and there are many other acropoleis in Greece. During ancient times the Acropolis of Athens was also more properly known as Cecropia, after the legendary serpent-man Cecrops, the supposed first Athenian king.
While there is evidence that the hill was inhabited as early as the fourth millennium BC, it was Pericles (495–429 BC) in the fifth century BC who coordinated the construction of the buildings whose present remains are the site's most important ones, including the Parthenon, the Propylaea, the Erechtheion and the Temple of Athena Nike. The Parthenon and the other bui