Kanuni Sultan Süleyman Türbesi: it is an Ottoman imperial mosque, being the second largest mosque in the city. This is located on the second Hill of Istanbul, Turkey and is one of the best-known sights of the city.
The Galata Tower — called Christea Turris by the Genoese — is a medieval stone tower in the Galata/Karaköy quarter of Istanbul, Turkey, just to the north of the Golden Horn's junction with the Bosphorus.
Byzantine design AD) at the Kariye Museum (Turkey). Adorned with mosaics and frescoes that were created in the century and illustrate the lives of Christ and the Virgin Mary. Rivalled only by mosaics adorning churches in Ravenna, Italy.