We have been trying to get out of the house and actually walk around the entire Nuremberg Imperial Castle on the outside of the defence walls.  This will not be a quick walk, I think it will take at least 2 hours.  The idea behind this exercise is to take a photo of every know defence and watch tower that was built to protect the caste.  There used to be 105 of these towers, I am not sure how many of them remain.  Now that autumn is here and most of the trees have dropped their leaves a lot of the smaller towers are now visible.   Towers aside,  the castle is protected by a massive amount of defence walls and numerous canals and the moat. The whole site is quite breath taking.  We have seen a number of very impressive castles on this trip. I often wonder what it was like a few hundred years ago for the soldiers dressed in some leathers, with a shield and a stick for a spear who were told to storm the castle.  It seems impossible and yet a lot of these castles fell during the siege.