Take a guided tour of the sights and sounds of America's oldest university. En route you will have a chance to meet faculty and students and to stop in at Harvard's art museums. QuickTime and RealPlayer features are optional. Visitors with slower modems can view a low-resolution version of the Tour.       Explore Harvard through 75 linked QuickTime panoramas. As you wander around and about the Yard, you can venture into classrooms, libraries, and dorm rooms. Slide shows and movies are also available. QuickTime 3 or later and a fast connection are required.