North west Heroon. From a notice in the Burdur museum: “In Augustan times (25 BC – 14 AD), the terraces to the north of the Upper Agora were transformed into a kind of sacred zone, commemorating heroes who had played a predominant role in the city’s history. Between 1994 and 1997 the best preserved of these commemorative monuments, the Northwest Heroon, was excavated. The monument, which is 14,73 m. high, is composed of a plain podium, a socle decorated with a frieze of dancing girls and a temple-like naiskos (aedicule on a base). The latter housed a nearly 4 meters high marble statue of an unknown local “heros”. The monument is characteristic in type of the transition from the late Hellenistic to the early Imperial period. Although its prototype is clearly Hellenistic, some of the decoration, such as the tendril frieze of the naiskos, which symbolizes the prosperity of the “golden age” initiated by Augustus’ reign, shows Roman influences. Around 400, when the center of Sagalassos was fortified again, the Northwest Heroon was converted into a tower in the city’s fortifications. During this conversion, the front of the original building was removed, so that the person to whom the monument was dedicated remains unknown.“
For more, see the Sagalassos excavators site on this subject. Please inform me if this link gets broken.