The USS Maine Mast Memorial is a memorial honoring those who died aboard the USS Maine (ACR-1) on February 15, 1898, after a mysterious explosion destroyed the ship while at anchor in Havana Harbor. It is located in Arlington National Cemetery in Arlington County, Virginia, in the United States. The memorial consists of the main mast of the battleship set atop a circular concrete burial receiving vault designed to resemble a battleship turret. The memorial has occasionally been used to hold the remains of important individuals, such as Lord Lothian and Ignacy Jan Paderewski.