The Blue Mosque in Istanbul is a favorite historical place , also known by its official name, the Sultan Ahmed Mosque (Turkish: Sultan Ahmet Camii), is an Ottoman-era historical imperial mosque located in Istanbul, Turkey. It was constructed between 1609 and 1617 during the rule of Ahmed I and this historical place remains a functioning mosque today. It also attracts a large number of tourists and is one of the most iconic historical place and popular monuments of Ottoman architecture.