In Greece there are several acropolis but without a doubt the most important is the Acropolis of Athens. It stands over the modern city of Athens and the original function of this type of site, in all Greek cities, was defensive and cult. The acropolis of the Greek capital rises just over 150 meters high, on a gentle hill, and the entrance to it is marked by a huge gate called Propylaea.
This gate was built on the ruins of other older propylaeans, around 437 BC The ancient structure had been destroyed by the Persians but it has survived time and today it shows us its six Doric style columns at the entrance plus the columns of the back part. There is a lot of marble and the lobby is 24 x 18 meters. Inside, a wall with five doors makes it divided into two sectors, among which there is a larger one that in turn has two rows of Ionic-style columns that give shape to three naves.
The ceilings have been preserved because the beams instead of being made of wood are made of marble and are more than seven meters long. The Propylaea is the first thing you come across when it's your turn to visit the Acropolis and then it's the turn of the Temple of Athena Nike.
Source: via Wikipedia
Photo: via Routes with Tracks