If you’ve ever used the Tokyo Metro, or even browsed maps of the rail network online, you’ll know that it is a positive maze of lines, colours, numbers and names that even locals sometimes have trouble navigating. Compared to the London Underground or even New York’s massive subway system, the Tokyo Metro is absolute chaos on paper, making us wonder how it could possibly all run so smoothly on a daily basis.
Thanks to one Tokyo University graduate’s efforts, however, we now know exactly what is going on beneath our feet, with this three-dimensional model filled with coloured liquids representing every twist, turn, climb and dip the Metro’s tunnels make in real life.