Some Covered Market!
Called simply the Kapalı Çarşı (Covered Market) in Turkish, the Grand Bazaar has thousands of shops and all the makings of a small town: police station, mosques, restaurants and teahouses. If you don’t travel to Turkey to shop, you must experience it.
I enjoy just wandering here, particularly on the “back streets” away from the shops selling souvenirs, carpets and leather apparel at which the touts can be annoying.
On the back streets the shopkeepers sell everyday items(often in wholesale lots). It’s quieter and, well, more Turkish.
Streets such as Uzunçarşı Caddesi (Street of the Long Market) and Hasırcılar Sokak (Street of the Mat-Makers) may not have elaborately painted arched ceilings, and my get damp when it rains, but they have wonderful slices of real Turkish daily life.