Built and launched in 1854, Constellation was the last sail-only warship designed by the U.S. Navy. She remained in service for almost a century but now is a museum ship in her golden years. This magnificent sloop-of-war has been beautifully restored. Her location in Baltimore is clearly visible to all visitors in the vicinity. Grab some food from one of Baltimore's many great eateries and eat it with a friend in full view of the ship.