Tomb of the Unknown Revolutionary War Soldier

The Tomb of the Unknown Revolutionary War Soldier, also known as the Tomb of the Unknown Soldier of the American Revolution, is a war memorial located within Washington Square in Philadelphia, Pennsylvania. The memorial honors the thousands of soldiers who died during the American Revolutionary War, many of whom were buried in mass graves in the square. The tomb and Washington Square are part of Independence National Historical Park.

The memorial was first conceived in 1954 by the Washington Square Planning Committee, and was completed in 1957. The monument was designed by architect G. Edwin Brumbaugh and includes an eternal flame and a bronze cast of Jean Antoine Houdon's statue of George Washington as the monument's centerpiece.

Source: Wikipedia