This little 12 minute documentary all about the construction of London's underground tube network is great. I became aware of it on Ian Visits' blog and it's definitely worth making a cuppa and giving it a watch. The bits that caught my attention the most were the '3D-ified' archive stills of tunnel construction. Lens flares, blurry bits and a small sense of camera movement. Surprisingly magical (and a wee bit moving, dare I say it). Commissioned by the Institute of Civil Engineers, I understand.