The Sultan Ahmed Mosque is a historical mosque in Istanbul, the largest city in Turkey and the capital of the Ottoman Empire (from 1453 to 1923). The mosque is popularly

Sultan Ahmed Mosque

known as the Blue Mosque for the blue tiles adorning the walls of its interior. It was built between 1609 and 1616, during the rule of Ahmed I. Like many other mosques, it also comprises a tomb of the founder, a madrasah  and a hospice. While still used as a mosque, the Sultan Ahmed Mosque has also become a popular tourist attraction. Sultan Ahmed Mosque is known as seventeenth largest mosque in the world.

source : http://thewondrous.com