For 10 points, name this complex of mounds east of St. Louis.
A location similar to this one seventy five miles to the west near Carondelet was destroyed to construct the nearest major city to this location; the only remaining part of that location is named Sugarloaf. This site is home to a location where an individual was buried with thousands of discs in the shape of a falcon surrounding him, an example of this location's "birdman" motif. In addition to that location, which also contained (*) sacrificial victims and numbered seventy-two, one site at this location is the Grand Plaza, which was originally surrounded by a stockade along with this location's ► Monks site. That latter location at this site is also home to a site which shares a name with a similar place in England; that site is Woodhenge.  For 10 points, name this complex of mounds east of St. Louis.
A location similar to this one seventy five miles to the west near Carondelet was destroyed to construct the nearest major city to this location; the only remaining part of that location is named Sugarloaf.
Cahokia Mounds