In Oxford Street, every billboard is a door, a real door of real Londoners’ houses. We’ve got fifty different ways to prove it. By using touchscreen technology, passers-by can knock the door or ring the bell, and then choose between social eating, couch-surfing and sightseeing offered for free by Londoners who applied on our website in order to open their homes. Sharing is the best way to get to know each other. The purpose is to show to the world that not only London is open, but every door in London is.