This is something that has bugged me for years and years so I wonder if anyone can help...
In the late 60s, possibly very early 70s, the toy I most coveted as a kid was a space-age train set sort of set up, where the tracks ran vertically and there was a futuristic train which ran up the tracks. I have a very vague recollection that the tracks were blue and that the "train" was white but beyond that I can't remember anything and I can't find anything in the interweb that meets the description of what it is im looking for.