Those are some really powerful images and I find them inspirational. It's such a great idea to do a photo essay on buildings like that. We had a few concrete air raid shelters near our school in Scotland and we used to hang out in them with no real attachment to what they really were. It wasn't until I got older that I started to grasp just how difficult that time must've been to live through. When I see your photos, I really get the WORLD bit of the world wars. Amazing pics.