Answer: Refrigerator

Even if you’ve never seen the 1985 Sci-Fi film Back to the Future, there’s a good chance you’re familiar with the iconic time machine found therein: a heavily modified DeLorean DMC-12 automobile. Back to the Future, more so than anything else in the history of the DeLorean company, really put the car on the cultural map.

What you may not know, however, is that the DeLorean was not director Robert Zemeckis’ first pick for a time traveling vessel. In fact, the first pick wasn’t even mobile. Originally, Zemeckis had intended to use an old refrigerator as the time travel vessel, but he soon realized that making an old refrigerator central to the plot of a time travel movie that would be viewed by thousands of kids would encourage them to play in old refrigerators—a premise he found far too risky and irresponsible, so he changed the mode of transportation to a souped-up, nuclear-powered car.