Graveyards don't exist merely to shelter the dead. They also nurture the living. In fact, America's garden cemeteries were our nation's first public parks. People used to visit cemeteries not only to mourn the dead, but to have a pleasant day in nature with their family. "Understanding Cemetery Symbols" by Tui Snider helps history buffs, genealogists, ghost hunters and other curiosity seekers decode the forgotten meanings of the symbols our ancestors...