I have been to Istanbul, Antalya and Pamukkale. If you are into Islamic History then you will like a visit to Sultan-Ahmet Square. Blue Mosque was beautiful but under renovation when I visted. I liked Topkapi Palace and Hagia Sophia besides Basilia Cistern. These are all in the Square.
Couldn't Explore Antalya much. Only the Duden Waterfalls.
Pamukkale was my favorite among all. The Hike in the thermal pools was adventurous and at the top Hierapolis Museum was fascinating. I was so tired after the hike, couldn't visit all the places though. We did a day-trip from Antalya, a night stay would have been better.
I have been to Düden waterfall, but I haven't had the chance to visit the others yet. I think I will visit them in the coming years.
Maybe you will come to visit Turkey again. I think there are many wonderful things here that you have not seen yet.
I really wish to visit Capadocia and beaches like Mugla. I can ask you for more recommendations. But I will have to sell both my kidneys for another visit. 😂
If you come to Turkey, you can write on Discord or Hive. I would like to help you. Mugla is one of the most beautiful cities in Turkey, I hope one day you can visit without selling your kidneys 😅.
If that day comes, I will surely write to you. 😀