Dennis Oppenheim's Monument to the Escape . . . is a memorial to the victims of the military regime during the Argentine Dirty War, a period of Argentinian state-sponsored violence from 1976 to 1983. The artist's subject is liberation and escape, rendered through cellblocks as physical enclosures . . . in this case, cellblocks are subjected to upheaval and become abstract sculptural form, turned and twisted . . . [with loss] of function. The massive opening occurs to bring light in.