What) The Musical Road in Lancaster is on Ave G and 30th Street. Once you get there you have to drive in the fast lane at 55 MPH, turn down your radio and, as your tires drive over the grooves in the street, a part of Rossini's "The William Tell Overture" is played. It's pretty cool! Apparently, they had initially built it for a Honda commercial on Ave K. The residents complained that the noise was too much and kept them awake, so they smoothed over that road and moved it to Ave G near Fox Airport. I always make it a point to drive that road when I'm in Lancaster. (1)

    Why) This one developed into quite a search.  Lancaster, California appears to have been laid out by a city planner who expected the city to accommodate millions of people instead of the 145,000 that they currently have.  The named streets start miles away from the city center and many of them are double lane width and nearly deserted.  It made for an eerie start.  Anyway, I knew that the Musical Road was on either Avenue G or 30th Street close to their intersection.  As it turns out, there are 4 locations in Lancaster where an Avenue G intersects a 30th Street so we had to drive up and down every one of them before finding the musical road on our eighth and last try.