Image: Moonik · CC BY-SA 3.0

17th-century mosque in Turkey

The Sultan Ahmed Mosque, popularly known as the Blue Mosque, is an Ottoman-era historical imperial mosque located in Istanbul, Turkey. It was constructed between 1609 and 1617 during the rule of Ahmed I. It attracts a large number of tourists and is one of the most iconic and popular monuments of Ottoman architecture.

41.0054, 28.9768 · Open in map · Wikipedia