This is the second blog post today... if you missed the first one, you should really read it before this one...
https://www.travelwithkevinandruth.com/2020/11/the-travertine-calcium-pools-of.html
So yesterday we went to the calcium pools at Pamukkale. But at the same location, and included in your ticket price, is the ancient city of Hieropolis. To us, it makes sense to explore both, but it seemed that most people were only interested in the water and the calcium formations.