Marriottsville, Maryland

Overview Fort Washington is located 15 miles south of Washington, D.C., along the Potomac River. Part of the National Park Service, it is a local favorite for picnicking, recreation and historic interest. Built to defend the nation's capital in 1824, the 19th century masonry fort is the oldest an...

Overview Antietam National Battlefield is the site of the bloodiest one day battle in American history. After twelve hours of savage combat on September 17, 1862, 23,000 soldiers were killed, wounded or missing. The Battle of Antietam ended the Confederate Army of Northern Virginia's first invas...