The Sultan Ahmed Mosque or Sultan Ahmet Mosque is a historic mosque located in Istanbul, Turkey's Historic Centre. A popular tourist site, Sultan Ahmed Mosque continues as a mosque today. Construction of the Blue Mosque, as it is popularly known, was built between 1609 and 1616 during the rule of Ahmed I. Its Külliye contains Ahmed's tomb, a madrasah and a hospice. Magnificent hand-painted blue tiles adorn the mosque’s interior walls and at night the mosque is bathed in blue as lights frame the mosque’s five main domes, six minarets and eight secondary domes.