Sagalassos is an active archaeological site in southwest Turkey which contains mostly Hellenistic and Ancient Roman historic ruins, some of them very well preserved.

In particular, the Fountain of Antoninler at Sagalassos still has its pretty facade. There are also the remains of a 9,000 seat theatre, a council hall (bouleuterion), a library, rock carved tombs, temples and baths.

Part of the Phrygian kingdom from the ninth century BC and then part of the Lydian kingdom, Sagalassos became more urbanized under the Persian Empire from 546BC, becoming a focal point in the region of Pisidia over the course of two centuries.

In 334BC, Alexander the Great arrived in the region and attacked Sagalassos, eventually succeeding in destroying it, although its citizens did put up a good fight. Over the coming centuries, the Pisidia region - including Sagalassos - changed hands several times, finally coming under Roman rule in 129BC.

The prosperity of Sagalassos fluctuated over the end of the first century BC, but slowly it became more successful, particularly because of the fertility of its land and the production of a material called Sagalassos Red Slip Ware, a type of tableware. Much of this affluence translated into the construction of buildings and monuments, especially during the second century AD, under Hadrian, and up to the third century.

Sagalassos began to fall into decline in around 500AD and this was accelerated by a devastating earthquake in 590AD. Although abandoned for a long period of time, the area was further inhabited from the tenth century AD.