A French library has an interesting collection online of postcards/paintings done by futurists around the turn of the last century. They detail how artists and engineers of the time thought the year 2000 would look. Some of them are pretty accurate given the lens of the current technology. My favorites are the school kids with the electric hats and book grinder and then the one with the bat wing firefighters.
It makes you wonder how far off our current predictions concerning the future are going to be. Since we have a better understanding of the physical universe, are we going to be better at predicting the future or worse?