The University of Southern California has created a map of its campus using the Google Maps API. The map uses an image overlay to present an isometric view of the campus buildings.
It is possible to search for buildings and locations on the campus in the map sidebar. The buildings are organised into categories of Dining, Galleries / Auditoria, Patient Care, Libraries, Residential, Athletics, Parks and Plazas.
Each building on the campus also comes with its own information window, that explains a little about the building and its history. The information window also contains a link to the building web page on the University's web site.