If you're a motorist in south west England, chances are you've probably encountered (or at least heard of) Swindon's Magic Roundabout. It's a monstrous concoction of five roundabouts smoshed together, and as far as I can see it serves no purpose other than to terrify bamboozled drivers up and down the country.
I'm not kidding. In 2009 it was named the fourth scariest junction in Britain, after London's equally mega roundabout at Marble Arch, the M8 junctions in central Glasgow and Birmingham's
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