Perhaps the most pivotal event in U.S. history – and the deadliest war to be fought on U.S. soil – the Civil War revealed what kind of country this new nation would become. In Washington, D.C., see the Lincoln Memorial at night and remember the man who held the nation together during that trying time. Standing on its steps, remember the dream that Martin Luther King, Jr. had decades later, fighting to end racial segregation. Walk through Ford’s Theater where President Lincoln spent his final evening. Visit Gettysburg, the site of the Civil War’s most critical battle.