A shrine to the thousands of women and men who have died to keep our country free. Within walking distance of the Arlington Cemetery Metro station. Expanded hours during the summer. Free; however, fee for only motorized tour - Tourmobile. The cemetery covers 612 acres. Over 200,000 veterans and their dependents buried here represent every conflict in which the United States has fought. Memorial sites include Tomb of the Unknowns; the gravesite of John F. and Jacqueline B. Kennedy (the eternal flame); Challenger Space Shuttle Memorial; Mast of the U.S.S. Maine ("Remember the Maine!"); Confederate Memorial; and the Coast Guard Memorial Civilians notables include boxing champ Joe Louis; actor Lee Marvin; WWII's most decorated soldier Audie Murphy; ABC newscaster Frank Reynolds; and 27th president William Howard Taft.