Coloured lantern slide depicting a view of the Three Kings Hotel, Basel. Old Bridge can be seen in the foreground, as can the River Rhine. Grand 'Les Trois Rois' hotel is one of Europe's oldest hotels, and still active today (2012). Old Bridge aka Middle Bridge or Mittlere Bruke is the oldest existing crossing of the Rhine between Lake Constance and the North Sea. It is 192 meters long and was first commissioned by Bishop Heinrich von Thun in 1225.. Slide number 1 of Box 181 entitled 'Swiss No.1'.