I have been meaning to find out about the Washington Monument, the piece of heroic monumental sculpture in the middle of the roundabout below the Philadelphia Museum of Art.   Apparently the idea of commemorating Washington dates back to 1810.   In 1824, a fund was estsblished to place a monument in Washington Square.   Eventually, Rudolf Siemering was commissioned in 1881 and the monument was unveiled first in Fairmont Park in 1897 and moved to its current location in 1928:-