Simit's Vendor Before Blue Mosque. A Typical Simit (Turkish Traditional Street Food) Before The Sultan Ahmed Mosque In Instanbul. The Mosque Is Popularly Known As The Blue Mosque For The Blue Tiles Adorning The Walls Of Its Interior. It Was Built From 1609 To 1616, During The Rule Of Ahmed I. Its Kã¼Lliye Contains A Tomb Of The Founder, A Madrasah And A Hospice.