http://paleofuture.gizmodo.com/the-jetsons-amusement-park-ride-that-never-was-1630639361/

The proposed ride, which never made it out of the concept drawing stage, would’ve sent visitors into the futuristic world of the ‘60s cartoon.
Read more at http://www.hitfix.com/tv-tattle#SDx86xaGawyTk56U.99