Check out this highway road in Lancaster, California that makes harmonic noises when you drive over them.
This is a road in Lancaster Ca. that makes music when you drive over it. It was created for a commercial and they designed harmonics in the asphalt to create the music when driven over. Apparently other countries have been doing it for awhile. Unfortunately people complianed and it is being removed. Their probably the same ones who complain about the jets flying through the valley. lol