Grand Bazaar is one of the oldest shopping mall in the world.
The Grand Bazaar Istanbul is one of the largest and oldest covered markets in the world, with 61 covered streets and over 4,000 shops.
Starting as a small vaulted bedesten(warehouse) built by order of Mehmet the Conqueror in 1461, it grew to cover a vast area as lanes between the bedesten, neighbouring shops and hans (caravanserais) were roofed and the market assumed the sprawling, labyrinthine form that it retains today.
How to get to Grand Bazaar
Take a finicular from Taksim Square for Kabatas and than take tram (T1) to Beyazit it is just next to tram stop. It ,s walkable from anywhere in old city Sultanahmet.