Huge sculptures among the mountains

It's a working stone crushing plant I saw recently in the mountain area of Ono City, Fukui Prefecture.
Of course, it's nice to see a landscape of beautiful modern factories, but I also feel charm in the atmosphere of such rugged structures of rusty iron materials, which are far from the word "precision" or "smart". They look like Tinguely's sculptures, but they are absolutely unknown.
I'm saying only about their appearances, though.
T.S