What's a good placement for this? I was thinking of putting in my military city with Heroic Epic so I can pump out units fast, but I'd also like to put West Point there. Also, when it says "+50% with iron" "+35% with coal" or whatever, does that mean I must have coal or iron inside the city radius where I build Iron works? Or must my Civ just have access to thos resources? I can't find documentation about it.