Jay Leno's Big Dog Garage - Cadillac GMSomewhere in Southern California is Jay Leno's 17,000 square-foot Big Dog Garage. Spread across two low-slung buildings cooked by the sun, it is one of the world's great car collections and one of the world's best-equipped garages custom-built from the ground up to keep everything running in tip-top shape. As a whole, the collection spans 100 years of automotive history. Check out the cars and share yours at jaylenosgarage.com.