Best Memorial Day Getaways Near BaltimoreMemorial Day is a federal holiday celebrated in remembrance of the men and women who died serving in the United States armed forces. The United States armed forces include the U.S. Army, U.S. Navy, U.S. Marine Corps, U.S. Air Force, and U.S. Coast Guard. This holiday is celebrated on the last Monday in May. Memorial Day was first celebrated after the Civil War and was first known as Decoration Day. These are some of the best Memorial Day getaways near Baltimore.