London Design Festival: Collective's High Street High Line

Camden Collective are taking charge of their high street's vacant rooftops and filling them with a handful of installations for London Design Festival. The artworks include a model train track that's been fitted with a webcam so that we can watch its journey on a live stream, a collection of giant birdhouses and a living billboard. More information about the project can be found at the Collective Hub, but you should be able to spot them for yourself: just look up.