London: Where The Streets Are Paved With...Geniuses

Watch where you're treading in North Bloomsbury. Among the fresh-fallen plane leaves and dried-on gum, you'll encounter the stenciled countenances of history's great (male) thinkers. Ghandi, Darwin, Dickens, Newton, Freud and others stare up from the pavement, accompanied by arrows that lead to UCL. A student prank? Something to do with the recent Big Draw event in this neighbourhood? Enlighten us in the comments if you know more about this.

Thanks to John Willshire for the tip-off.