Now go outside and look at the sky.
For some reason there is always an intense fascination with the future of transportation. Every few months we find articles in magazines and newspapers about the car (plane, boat, subway...) of the future, and invariably these predictions are wildly - and often hilariously - wrong.
We've all seen the tear-shaped cars of the future as imagined in the 1950s, or the spiky rocket ships of the future as imagined in the 1960s... and then there is of course the forever-in-the-future flying car, coming to a garage near you in less than 20 years for at least three generations now.
Here is a site of the University of California in Berkeley that has a fine collection of futuristic photos and drawings of cars, planes and trains that will forever stay in our future.
(Thanks to Jrgen for the link)