<P> Coordinates: 39 ° 56 ′ 49" N 75 ° 09 ′ 10" W ﻿ / ﻿ 39.947073 ° N 75.152689 ° W ﻿ / 39.947073; - 75.152689 </P> <P> The Tomb of the Unknown Revolutionary War Soldier, sometimes referred to 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 . </P> <P> 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 . The tomb includes remains which were disinterred, after archeological examination, from beneath the square . The remains are that of a soldier, but it is uncertain if he was Colonial or British . An unknown number of bodies were buried beneath the square and the surrounding area . Remains are still occasionally found during construction and maintenance projects . </P>

Who is burried in the tomb of the unknown soldier