An Efficient LA in Chris Burden's Mini-City

"'Metropolis II'...has 'an elaborate system of 18 roadways, including one 6 lane freeway, and HO scale train tracks,' according to LACMA. 1,100 custom-made Hot Wheels-style cars zoom around erector set and LEGO buildings at a scale speed of about 240 mph--they're pulled up a conveyor belt by a magnet, then ride gravity through the Teflon-covered course (the trains are "out of the box electric train sets," according to the museum's Unframed blog. LACMA built a catwalk around the room for Eagle eye viewing, and put up a couple of walls that help buffer the sound."