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

Project by Princeton University in 1996. Technical details of producing the model, some photographs.

A typological study by Serhat Cetinturk of the facades of houses in this historic district of Istanbul, using maps, drawings and photographs from the archive of the Planning Department of Mimar Sinan University.

From Wikipedia, an illustrated history and description of the Byzantine Church of Holy Wisdom, now known as the Ayasofya Museum.

A brief history of the Byzantine building, including description of the contents and items to see. Site by by OTTI Travel.

Muze Istanbul provides history and visitor's guide of the church, now a mosque and museum.

UNESCO guide to the world heritage town.

Article describing a building in Istanbul considered to be one of the most beautiful examples of Byzantine architecture, now a museum. Located at Edirnekapi.

Illustrated history and description from the online collaborative encyclopedia of this grand mosque in Istanbul, built on the order of Suleiman I to a design by Sinan which reflected the nearby Hagia Sophia.