http://en.wikipedia.org/wiki/Basilica_Cistern

Picture taken: 2012-09-23 17:01:45
At 41.0084, 28.9779683333333 // 32.272461m hieght in European Side, Fatih, İstanbul, Turkey
With: NIKON CORPORATION, NIKON D800, 24.0-120.0 mm f/4.0