The Sultan Ahmed Mosque (Turkish: Sultan Ahmet Camii) is a historic mosque in Istanbul. 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 Kulliye contains a tomb of the founder, a madrasah and a hospice. The Sultan Ahmed Mosque is still popularly used as a mosque.
circa 1610 CE
Courtyard of the mosque, at dusk. Panoramic view of the courtyard of the Blue Mosque, in Istanbul, Turkey