Trains occupy a special place in the human psyche. The twin threads of the rails forge ahead from place to place, the ultimate symbol of travel and connection and all the hopes, fantasies, fears, reasons, romance and excitement that come with that. The links between points, the bridges and tunnels, are always so much more profound than borders or walls. And yet you travel these links through a world that is isolated from normal life and unique to itself. The railways are so mundane and taken for granted, passing through the backs of your cities and towns, yet they are worlds that cannot be...