Within These Walls

At Bismarckstraße 67 Berlin there's a very good coffee shop Later when visiting the ladies room ( which being uninsex is 'every ones 'room) I'd to walk into this huge yard which is covered over at roof level .Altbau is always a joy to see. Once inside the WC room I noted the door. Beautiful wood in which are two stained glass windows See extra .On coming out I saw the use of this stained glass is all the way up and round  to the roof.