Harvard Yard - Cambridge, MAphoto credit: Bob MacKinnonTo stop or not? - Remington St. & Mass. Ave.photo credit: Bob MacKinnon1200 Mass. Ave. Cambridgephoto credit: Bob MacKinnonHead of the Charles - Regatta 2006photo credit: Bob MacKinnonHarvard University Walking Pathphoto credit: Bob MacKinnonHarvard Square Cambridge, MAphoto credit: Bob MacKinnonLarz Anderson Bridge over the Charles Riverphoto credit: Bob MacKinnon