National Register of Historic Places. The National Park Service includes urls in the file for the .pdfs of applications and photographs for those that have been scanned.
After a quick sort to identify 444 sites with "college" in their names, I opened the data as a Fusion table for geocoding and creation of the map below. Some of the sites are for institutions that have closed, like the one for Gooding College in Idaho. Click on a red icon to see a card with information for the site. As always, your comments and suggestions are appreciated!!