Spent most of the day wandering around the various Mosques on offer in the city, and there are quite a few. The biggest in no longer a Mosque, having been turned into a museum when the country was secularised. The Aya Sofya is an amazing structure, all the more so for being built by the Emperor Justinian in 537. The Blue Mosque next door is almost as stunning and underneath the streets is an old Roman Cistern, a vast underground space used for storing water. Also visited the Grand Bazaar, an large covered area bustling with traders and tourists. Spent the rest of the day wandering the streets and looking at the views. Finished with a Fish Sandwich down by the docks.