This monumental marble entrance of the Acropolis was built by Mnesicles in the 5C B.C. From the 12 to the 15C, it was converted into a palace for the bishops and dukes of Athens. It was only in 1878 that the Frankish Tower, overlooking the right wing, was demolished. Emerging from the Propylaea, you will see the majestic bulk of the Parthenon and the slender silhouette of the Erechteion. Note an impressive bronze warrior which used to stand not far from here.