If you ever have the opportunity to visit Istanbul, you will likely check out both the Blue Mosque and the Hagia Sophia, which are located next to each other. I visited both during my walking tour of Istanbul and was impressed by both. If you go during the daytime with natural light shining through, it’s tough to take a bad picture.
You will spend a lot of time staring up at beautiful domes, and you will enjoy every minute of it. My time in Istanbul was fun, but brief. I can’t wait to visit again!