Addendum (and hint): it is now used differently (changed at least twice), but today something is in it which is unique in the world.
Is it now a museum, Walter, containing a famous artifact?
It is a museum, indeed - containing more than one piece of art. (Disputable, if one piece more famous than the other.)
However, it has been a (different) museum before as well.
Okay, Walter, it is in Germany and has been two different types of museums. Presently, an art museum, right? Did the previous museum contain artifacts having to do with war?
and it is near Westphalia, right?
Wow, c.i. - correct!
But what museum is it?
Westfalisches Landesmuseum fur Kunst und Kulturgeschichte?
No - really unique in the world = there's nothing similar!
Lacquer Art Museum..
Difficult to find pictures..
Very difficult to find pictures. Google simply isn't working for me. Walter, give us a hint about the war artifacts.
Well, there's a museum of tanks and what looks to be a glass sculpture garden there.
Francis got it: Museum for Lacquer Art
(Correct, not easy to find - the pic is a download from the offical Münster city website.)
Your turn again.