I was on a vacation about 18 yrs ago up through Sharpsburg (Antietam), MD, the C&O Canal from Washington, D.C. up through Hancock, MD, Harpers Ferry (John Brown's Raid) and up through to Gettsyburg, PA (saw the 130th Civil War reenactment '93). On the way to Gettysburg, I stopped a night in Bedford County , PA, this county is known for its covered bridges....like 12 or 15 covered bridges if I recall. I couldn't go to all of them. Visited a few Mason Dixon border markers (original) on the MD/PA line. Then afterwards, went to D.C. to watch the July 4th Fireworks on the way home. Quite a vacation.