We’re not sure if this is the best thing ever, or the backdrop for a terrifying apocalyptic horror show.
YouTuber Tom Scott recently took a trip to Italy to visit a giant, human-powered theme park-style playground.
Tom tells us that the park was designed and built by a dude called Bruno over forty years. Which seems like a fine use of idle hands, on balance.
It certainly has the potential to be awesome, but seeing Tom and his pal spin around on a bicycle wheel of death does make you a little queasy.