Potsdam offers Sanssouci place gardens, a vast collection of royal Prussian fancies in grand scale, topped with second world war and cold war memorabilia. My top three is 1) potatoes from grateful Germans on Frederick the Great’s grave 2) Cecilienhof- mock Tudor palace from 1916 , when Germany was at war against Britain, but the royalty still admired everything English… 3) City walls that were not protecting from the enemy, but keeping soldiers in the garrison town from deserting