Collection of digital photographs from many different contributors. Images may be used for free for educational purposes (with credit). For publication, rights may be negotiated with the individual photographer. Also a good site for information about the structures.
This collection of original photographs and drawings is drawn from ethnographic research on architecture and traditional domestic life in Sri Lanka, conducted in various periods between 1965 and 2012, by Bonnie and Robert MacDougall. From Cornell Library.
172 photographs of the Imperial Palace in Peking, taken by Kazumasa Ogawa and published as callotype prints 1906 in a 2-volume set titled Photographs of Palace Buildings of Peking. Available through JSTOR.