CEVAP:

The Historic Areas of Istanbul hold unique monuments from the Byzantine and Ottoman civilizations. Istanbul’s history is a very long one: already in 395 (then named Constantinopel) the city was made capital of the Eastern Roman Empire. The Hagia Sophia dates from this Christian era: it was constructed by Emperor Justinianus. The Blue Mosque is located just across the street from the Hagia Sophia. It was built during the 17th century. On the outside are the 6 minarets as its main characteristics . Inside it is decorated with blue tiles and numerous carpets.