This is “Thee” Grassy Knoll. The infamous icon located on the fringe of Dealey Plaza, where president John Kennedy was assassinated on November 22nd, 1963. The conspiracy goes that Oswald was positioned on the sixth floor of the School Book Depository and another shooter was on the grassy knoll. Both assassins fired at the president to ensure a successful mission.
The rest is conjecture, conspiracy, and history.
LURKING ON THE GRASSY KNOLL
R.I.P. Big G 11/20/1997