Did you know that one of the country's earliest roller coasters was originally Pennsylvania's Mauch Chunk Switchback Railway? Innovative thrill-seekers rode down the abandoned mine track, repurposing the tracks for their own amusement.
That's just one of the surprising facts about amusement parks that John Green discusses in this week's video from our sister site Mental Floss. Other noteworthy facts include that Denmark's BonBon Land has a "farting dog" ride, and the Jurassic Park ride at Universal Studios costs more than the film's production. And, perhaps most oddly, legend has it that the Palace of Versailles inspired the invention of funhouse mirrors.
Check out all of the amusing facts in the video below. --Meghan DeMaria