>>1671654Reinhardstein castle is top comfy and there's a pretty nice trail going next to it (pic related), Walzin castle is another one with a nice trail that I'm planning to do in the near future. The ardennes are littered with war cemetaries, old bunkers, forts etc from both world wars if you're into that, you'll inevitably run into them hiking around Wallonia. There used to be a really cool car cemetary with old american cars but it got cleaned up a while ago, they still don't know how or when they got there but they suspect the Americans brought them during WW2 although no one knows why. I could give you some sites with a buncha trails but it's all in Dutch.
