This is a musical road. It's near Lancaster, California, and was built for an advert. When you drive over the tarmac, it creates harmonics that play a tune. Obviously the faster you drive over it, the faster the song will be. Interesting to see the Doppler effect come into play, though, when other cars drive by.
Oh, and while we're talking YouTube videos, Shiny Shiny have a brilliant XKCD comic this morning.
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