See all the top istanbul attractions in one day on this small group walking tour led by an expert local guide focusing on the sultanahmet area of this east meets west city your tour visits incredible sites like the unesco world heritage listed hagia sophia museum and the blue mosque step back in time to a world of sultans and harems in topkapi palace admire hagia irenes byzantine architecture and then watch local artists making handicrafts in the grand bazaar numbers are limited to 15 on