The Sultanahmet District
Sultanahmet is the heart of historic Old Istanbul, what 19th-century travelers used to call "Stamboul."
This is where you'll find Topkapi Palace, Ayasofya (Hagia Sophia), the Blue Mosque (Sultan Ahmet Camii), the Byzantine Hippodrome, Yerebatan Saray (Sunken Palace Cistern), the Istanbul Archeological Museums, Great Palace Mosaic Museum, and several lesser sights (see map below).
Sultanahmet is your best base for sightseeing in Istanbul. For a rundown on things to see, go to Istanbul Sights.
Sultanahmet Hotels are the closest Hotels in Istanbul to the most attractive tourist spots.
Luckily for our visitors, the district of Sultanahmet (sool-tahn-ah-MEHT, named for Sultan Ahmet I, builder of the Blue Mosque) also has a number of serviceable restaurants and dozens of good stores in all price ranges.
Sultanahmet Camii (Blue Mosque)
It is one of the symbols of Istanbul and also one of the most significant works of the Ottoman era. Blue Mosque was constructed in early 1600s by the Architect Sedefkar Mehmet Aga, as instructed by Sultan Ahmet Ist. The Sultanahmet / Blue Mosque isone of the most important structures of the city and its outstanding characteristic is that it is decorated with more than 20 thousand blue, green and white tiles. Its hemidomes and the big dome has been adorned with dominantly blue hand-drawings. Therefore it is also called the Blue mosque. It is the only mosque in Turkey with 6 minarets.