Would you define a monument as B?
Granted that we jump objects for the fun of it, no matter how you can define it or call it or categorize it, and granted that the people involved have ALREADY jumped a bone fide B (with all details that "belong" to a B). I am talking about a "definite" monument that is shaped as a B, has got NONE living permanently in it, in special occasions there authorities (=military/whatsoever) that "populate" it for the celebrations, and, yes, there are also security issues with videocameras distribuited somwhow along the perimeter (not along the whole the perimeter

And, yes, it is completely within the city limits (it has got real B's all around).
Would you define such a monument as a B in BASE terms?