I found a rather unusual station in Golden Week, in Gunma - near Kusatsu onsen. It is no longer in use (it closed in 1971). However, it is still interesting!
The building behind the platform sign used to be three storeys high, into which iron ore was dumped from the local mine. Then, it was loaded into the wagons below, to be transported down the line through Naganohara for processing.
There is some old rolling stock & the platform has been restored - there are no trains running now. Obsessives can get their stamps, and memorabilia in the quaint little museum which used to be the ticket office, with some really cheap prices for tickets to Niigata or Yokohama! There are some great black & white photos on display too.
I really liked this chance to see some of rural Japan's industrial past - before it gets too hot this summer!
