http://tomscott.com - http://twitter.com/tomscott - Under the Elbe river in Hamburg, Germany, lies the Old Elbe Tunnel in St Pauli. Like early 20th century tunnels around the world, it has lifts or stairs to take you down and under the river. But this is on a whole different scale to those you might have seen elsewhere... And go see Miniatur Wunderland, if you haven't already: https://www.youtube.com/watch?v=ACkmg3Y64_s
