What's with the walls and cranes? There is some construction going on in this 1968 photo of Tomorrowland! During that year, the Autopia was remodelled, the Mark III Monorails debuted, and the Peoplemover was given "major improvements" (according to one website). What exactly these improvements were, I don't know. Perhaps that's when they added the loop? ;-)
I threw in this 1957 photo today...because I didn't know what else to do with it. I believe that the Plaza Gardens are to the left...does the little bridge still exist? I am wondering if this photo could have been taken from near the House of the Future.