San Jose State University provides an extensive gallery of expandable photographs, accessed by pull-down menu and selection from an array. Basic information given for each.

A non-profit project creating computer reconstructions of the Byzantine monuments of Constantinople (now Istanbul) as they stood in 1200 AD.

Background information and photographs of the Haghia Sophia and other monuments if Constantinople, for 1000 years the capital of the Hellenic (Greek) Empire of Byzantium.

Photographs of two magnificent Byzantine churches in Ravenna: St. Apollinare in Classe (530-549) and San Vitale (526-547) from Leo Masuda's History of Western Architecture.

Photographs of the defences of the Topkapi Palace, the Sea walls, the Yedikule Fortress and parts of the Theodosian Land walls by Stephen Francis Wyley.