When people think of the Tomb of the Unknown Soldier, they usually think of the WWI monument in Arlington National Cemetery. However, Philadelphia’s Tomb of the Unknown Soldier honors the many fallen heroes from the American Revolutionary War. It was established in Washington Square Park in 1957, and the monument includes an eternal flame and a bronze statue of George Washington. Inside the tomb are the remains of a soldier found in the park, which was formerly used as a cemetery. Also found in the park is a clone of the original Moon Tree, a sycamore grown from a seed that was taken to space by astronaut Stuart Roosa on Apollo XIV.
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