Here are some links to pictures from a recent trip to Turkey.
I have posted many pictures and some videos from my visit if you are interested (these are on Google drive, and you can view them at this link: Kevin’s pics and video of Perga). You can also view pictures from Old Antalya in this link: Kevin’s pics in Old Antalya.
Then from my time in Istanbul, you can view pictures of the Hagia Sophia and Blue Mosque in Istanbul: Blue Mosque and Hagia Sophia (those not labeled as Blue Mosque, or obviously Blue Mosque, are Hagia Sophia). And lastly, you can view pictures of an underground cistern in Istanbul: Underground Cistern.