Ford's Theater National Historic Site, 511 10th Street, NW, Washington, DC. Better known as the place where President Lincoln was shot. He was watching the play "Our American Cousin". I remember that piece of trivia for one reason. While in the service I was in my office and answered the Hotline phone from another base in England. Expecting to be told I needed to brief an incoming pilot, but instead I was asked what the name of the play Lincoln was watching when he was assassinated? Seems they had some trivia contest going on. Since there was no Google in 1986, they called back later with the correct answer.