View looking down from the top of the Council House east towards the Upper Agora.
In the lower right of the image the pavement of the bouleuterion is visible and on the lower left the three entrance doors. To the left of center is the reconstructed nymphaeum (that actually has flowing water in it!) that is flanked by two columns that were crowned by statues of leading citizens of Sagalassos.
The Council House was where the boule of the city met—thus the name of the structure where they met—the bouleuterion. The boule was the elected representatives of the citizens of a city (the ekklesia) that governed the city. The number of boule varied from city to city. In a large city like Athens there were 500 on this council.