HyperMedia was a project funded by the german Federal Ministry of Education and Research. In this project we (Martin Höppl and me) linked circa 1.000 mainly french and british art printed graphics. The result is a systematic network of picture details, thousands of hyperlinks, and detailed annotations which can freely explored by the user.
Project description (german): http://www.uni-lueneburg.de/hyperimage/hyperimage/hyperMedia.htm
Online publication: http://www.uni-lueneburg.de/hyperimage/HI_Media