If nothing else, go for the wooden escalators and killer bikes. That would be Sint-Annatunnel, a pedestrian and bike tunnel, constructed 1931-1933, running under the Scheldt river and connecting Antwerp city center with the Left Bank. From the nondescript entrance, you take two long escalator flights down – both bikes and pedestrians The tunnel is 572 meters long (about 1/3 mile) but with bikes speeding by, it seemed like forever (as Grubb has already described).
Once on the Left Bank, you’ve got a clear view of Antwerp’s skyline. On the Left Bank, the area is primarily residential.
We took the path of least resistance to get back to the other side. Turns out there is a free ferry that goes back and forth all day long. Takes about 5 minutes to cross.
You would think that there would be a bike lane and a pedestrian lane. I’d have guessed that that was what the middle different looking part of the path was, but there are pedestrians on the far left not on this middle strip. Seems surprisingly dangerous for a European country — they are usually pretty safety conscious.
Not quite wide enough for a pedestrian and a bike lane in each direction. Nor is the middle part big enough for two way bike traffic. I think the architect didn’t predict tha volume of bikers nor that bikers would use it as an all out speed test. I walked the tunnel 10 years ago and it wasn’t anything like today.