As you would expect from a region so rich in culture Antalya has some great Museums with the Archeological one in Antalya itself being the pick of the bunch.
Antalya Archaeological Museum is considered to be one of the best museums in Turkey. Visiting there really is like taking a step back in time and the amount of extremely well preserved artifacts is astonishing.
Without doubt it is a 'must do' while in Antalya. There is also a good museum in Side as well close to the Amphitheatre.
Another museum of interest to visit is the Suna-Inan Kirac Museum set in an old ottoman fishing house and located in the Kaleici. It holds local life in the ancient Kaleici and artifacts from Anatolian culture.