Map of Istanbul and the Bosphorus strait. Plan of Hagia Sophia.
Constantinople and the Bosphorus
WALSH, Robert/ALLOM, Thomas. Constantinople and the Scenery of the Seven Churches of Asia Minor illustrated. In a Series of Drawings from Nature by Thomas Allom. With an historical account of Constantinople, and descriptions of the plates, by the Rev. Robert Walsh..., London/Paris, Fisher, Son & Co. [1836-38].
Architecture and built environment
Hellenic Library - Alexander S. Onassis Public Benefit Foundation