The site of some of the German WW2 U-Boat Pens … so big and made of such thick concrete that they are still there … too bloody hard to demolish!








You seriously wouldn’t want to suffer from even mild claustrophobia if you had to travel or work in one of these things … or any of the WW2 or immediately post WW2 diesel-electric subs. SSNs and SSBNs, however, are a different kettle of fish … as Le Redoubtable (Cherbourg) shows.