Yes those are the toilets! I was amazed by them and found that the flush control clicks out and the access to the cistern is behind it, and that's why typicall

Yes those are the toilets! I was amazed by them and found that the flush control clicks out and the access to the cistern is behind it, and that's why typically the flush button is so large, because you just tile the whole cistern into the wall and mount the toilet to it. Interesting design. I've read that it isn't without its problems and has to be installed quite carefully. But it seems very widespread in Germany. The doors - yes. With beautiful solidity. I had a look and possibly Grauthoff is a name of one manufacturer. When I was last in Berlin I kept looking for labels or manufacturer marks but I couldn't find any. I daresay someone in construction in Germany would immediately know.