Look at CIC (Council of Independent Colleges) Historic Campus Architecture Project (HCAP)here It's magnificent! It's the first national architecture and landscape database of independent college and university campuses. This project presents information about significant buildings, landscapes, campus plans, and heritage sites of American higher education and identifies sources for further research. Supported by grants from the Getty Foundation, the CIC HCAP website documents nearly 2,100 places of historical significance on private college and university campuses and includes nearly 5,000 images relating to these sites. To date, nearly 400 institutions have participated.
I am working on UMM Digital Image Database now, one collection called Historic Campus, which was based on a project founded by Getty Foundation too, including many significant historic campus photos. So I am quite interested in the project.
Here is a link to the story of the project and Barbara S. Christen, an architectural historian who has been overseen the project.