Unofficial Tours - Two dynamic Harvard seniors - a New England liberal and a conservative Texan - combine their unique perspectives to offer you the ultimate Harvard tour. - http://www.harv.unofficialtours.com/
The Harvard Guide - Hour-long, free, student-led tour of Harvard Yard. - http://www.news.harvard.edu/guide/to_do
Harvard University Map - Maps of the Harvard campuses in Cambridge, Allston, Longwood Medical Area, and Watertown Arsenal, including surrounding areas. - http://map.harvard.edu/
FAQ-TV: Harvard University - Video tour of the Harvard campus. - http://www.faq-tv.com/pages/boston/places/harvarduniv