There is one very famous museum which was the house used by Mustafa Kemal Atatürk—the founder of the Turkish Republic—when he visited Denizli. This museum is conveniently located across the street from “Babadağlılar İşhanı” where you can shop for Turkish towels and other linens.
There is also a very important historical site in Pamukkale—the ancient site of Hierapolis. In that historical site, you can find a well preserved ancient theater and necropolis. The Hierapolis Museum and historic site are well worth seeing. A bit closer by are the ruins of what once was Laodicea.
The main part of the ancient town is somewhat better preserved than that of Hierapolis. On the other hand; the theatre at Hierapolis is in much better shape than that of Laodicaea. Since it’s along the dolmuş route between Denizli and Pamukkale, you can ask the driver to let you out at the turn-off and pick up a later dolmuş to carry you on to your destination. The driver will stop and let you off on the side of the highway. You should see a large brown sign pointing out the direction of Laodicea. You will need to walk up this road about 15 minutes to reach the site.
Pamukkale University and the city of Denizli have been doing extensive excavations in the last year and have developed the site nicely.
There is a small cafe and gift shop as well as restrooms.
Even if you don’t have time to walk around the entire site, you should walk down the main road, called Syria Street, and go up to the temple. The temple has a glass floor so you can look down into the basement and see offerings that were uncovered there during excavations. The temple also offers a great view of the surrounding area, including Pamukkale in the distance. Also, do not forget to visit Leodikeia one of the biggest ancient places around region. Its on the way of Pamukkale.