It's a forty thousand LED tunnel, hooked up to some computer-based randomness, that just flashes the lights in different random configurations. The artist claims that no pattern will be visible twice.
Here's a video, just to further hook you:
Villareal "Multiverse" National Gallery of Art, Washington DC from Walter Patrick Smith on Vimeo.
It's only like an hour long drive, minus the whole parking issue. So who's with me?