The National Park Service offers a self-guided walking-tour map of the Black Heritage Trail as well as, in the summer, daily guided tours; the African Meeting House, at 46 Joy Street, is open Monday through Friday from 10:00 A.M. to 4:00 P.M. Call 617-742-5415 or see www.nps.gov/boaf/ for information. The Memorial Transept, at Harvard, is generally open to the public on weekdays from 9:00 A.M. to 6:00 P.M. ; call 617-496-4595 or see www.fas.harvard.edu/∼memhall . Mount Auburn Cemetery (617-547-7105), at 580 Mt. Auburn Street in Cambridge, is open from 8:00 A.M. to 5:00 P.M. , seven days a week. For information on lodgings and more, contact the Greater Boston Convention & Visitors Bureau, at 888-SEE-BOSTON or www.bostonusa.com , or the Massachusetts Office of Travel & Tourism, at 1-800-227-6277 or www.mass-vacation.com .