Propylon

A propylaea, propylea or propylaia (/ˌprɒpɪˈliːə/; Greek: Προπύλαια) is any monumental gateway in Greek architecture. Much the best known Greek example is the propylaea that serves as the entrance to the Acropolis in Athens. The Greek Revival Brandenburg Gate of Berlin and the Propylaea in Munich both evoke the central portion of the Athens propylaea.

The Greek word προπύλαιον propylaeon (propylaeum is the Latin version) is the union of the prefix προ- pro-, "before, in front of" plus the plural of πύλη pyle "gate," meaning literally "that which is before the gates," but the word has come to mean simply "gate building."

The monumental gateway to the Acropolis, the Propylaea was built under the general direction of the Athenian leader Pericles, but Phidias was given the responsibility for planning the rebuilding of the Acropolis as a whole at the conclusion of the Persian Wars. According to Plutarch, the Propylaea was designed by the architect Mnesicles, but we know nothing more about him. Construction began in 437 BC and was terminated in 432, when the building was still unfinished.

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