Walldriving Stunt #7 - Jumping into the Art Institute
Just begin at the place where you are when you start cruising. Drive down to the Art Institute.
You need to drive 120 MPH, and slam into the right wall. Then you'll fly over the wall that's in front of you.
You will fall through the roof, but the game won't start over again, you can keep driving inside the Art Institute. It's a nice place to hide yourself in Cops and Robbers.