Giant 3D video displays can be pretty cool, but it's hard for a virtual 3D effect to compete with an actually moving 3D display. This crazy wall design built for the Hyundai Motor Group's Exhibition Pavilion is a great example, with giant walls of moving blocks creating patterns that wow a bunch of visiting school kids.
The "Hyper-Matrix" wall was created by a South Korean art collective called Jonpasang, using thousands of one-foot styrofoam cubes that are pushed in and out by computer-controlled stepping motor actuators. The resulting patterns are mostly just fun to watch rather than informational, but we do get to see a car running across the wall at one point.
The effect in the video is very cool, but it's hard to imagine how amazing this would be in person surrounded by 35-foot walls that are all moving in sync. Listening to the kids as they "oooh!" and "aaah!" does give us at least some idea.