A workman is accidentally sent into outer space, where he meets an alien that can make himself invisible. They return to Earth in the year 2447. Complications ensue.
More than half of us now live in cities. Crowded, chaotic and bursting with life - these are places under pressure. In this brand new series, Dan Snow, Anita Rani and Ade Adepitan go behind the scenes to reveal the hidden systems and arm…