Glass is multifaceted material which can create many illusions allowing you complete control in redesigning the space and time of a built environment. The discourses that are explored within this documentary touch on many aspects of humanities and architectural design, diving into the archives and exploring a world that was never built. In an hour explore a world that remained in the minds of their creators and in the sketchbooks they left behind. I would thoroughly recommend this series to anyone who is interested in theories of space and construction, especially that of British cities. How does city planning compensate for the unique stresses of the city, traffic, commerce, tourism and pollution as well as enabling its virtues to flourish.