Travelling Europe, Need Inspiration

Did you see Nideggen and the tank tread in the Eifel? creepy shit. i heard and felt ghosts there. also, there are still glasmeinen everywhere.
Can you tell me more about this? I know that Nideggen is a city there but can't imagine much about tank tread and ghosts there. Never heard about glasmeinen either :D
 
glasmeinen are special little glass landmines the nazis put everywhere in the woods. theyre undetectable and still function. Nideggens cool!! Check it out. The whole areas full of ghosts.
 
Ah ok. Glasminen is the correct spelling, just to be correct. Still didn't know about them, though. So tank treads are just treads of tanks probably? Thought this might have another meaning I don't know.