The London Transport Museum's Hidden London team turn their attention to Euston station in episode 6. From its humble beginnings on the corner of Melton and Drummond Streets, to its brand-new future as the London terminus for HS2, Euston station has an intriguing history and future to reveal. This week, the team are joined by David Bownes who casts his expert eye on the brilliant poster advertising and design that visitors can enjoy during a Hidden London tour.