Colossae is on the outskirts of Denizli Province and is one of the six major cities of Phrygia. It reached its richest period under Persian rule, but lost its importance when Laodicea was founded.

The ruins of the City of Ancient Colossi are located on the hill that is also the Acropolis and are also in the area. In the north of the hill are the rock tombs, the size of which ranges from room type to house type.