This pumping station is straight out of Myst.
I tooted earlier, asking if anybody else goes hiking looking for places that look like Myst or Riven. This is spot on.
@th If you overlaid that Hypercard-lookin' index-finger-extended cursor over this, I would absolutely believe that it's an island I never reached, from the remastered version I never played.
@th This door is perfectly shaped to let one straight up coffin in (or out).