Bernd Biege
Google
One of the iconic castles of Germany, with loads of imperial connections, and well worth braving the rather steep ascent (the views are great, too). Part of the fortifications that lure you up are actually the city wall, not the castle proper, but the overall effect is what counts. If you are spendthrift, skip the castle interior (interesting, but nor overwhelming), and definitely do not eat there (much better value can be found around the nearby Dürerhaus or in town).