Hi my name is ainee khan aniee khan please subscribe my channel for more videos
If You want to visit the center of historical place in Istanbul City, let me tell you you have go direct to Fatih District.
It is the most crowded Touristic Place in Istanbul even in Turkey.
You have Chance to Visit Grand Bazaar that has been there for centuries and also see the fake market and buy whatever Brand you like with cheap price and with good quality.
Another Thing is that you can visit Blue Mosque (Sultan Ahmet Camıı) And also Hagia Sophia Mosque.