I built a hidden gun room in my basement. Took several weeks and more money than a pair of RBLs but it is well worth the investment. It has no outside window so only those invited in ever get to see what is behind door number two. Holds 300 plus and has work bench, tables and nice area to reload in it. Think wine cellar for the gun nut.

Public display is not a bright idea. Just like an add to come steal my stuff. On top of that most theives do not know one doulbe from another so they will just grab all they can and you will be out your entire collection. I know of one fellow who has 15-20 klunkers in a glass gun cabinet to use as bait. The good stuff is in a safe that is behind door number one. He hopes a smash and grab type will take the easy stuiff and leave the good stuff alone. Not a great plan but better than none I suspose.