Next time you are gridlocked on the 405, imagine an alternative LA: a city in which cars speed without stalling or colliding on a network of freeways that loop around an eclectic array of towers. Trains run on elevated tracks and the ground lies forgotten, far below. It’s the city that Filippo Marinetti conceived in his Futurist Manifesto and Fritz Lang brought to the screen in Metropolis. Eighty-five years later, Chris Burden has revived the concept as Metropolis II and this mesmerizing installation is on long-term loan to LACMA, a few steps from Urban Light, his forest of vintage street lamps. Orson Welles described the RKO Studio as “the greatest train set a boy ever had,” and Metropolis II is a kinetic toy to delight frustrated drivers and their offspring.