AlvinofDiaspar
Moderator
Anyway, back on topic, I think a small 2-3 foot tall decorative ironwork on top of the moat walls (in aesthetic color such steel-gray; although traditional ironwork black would have a dramatic impact, it doesn't seem to fit the theme as well as steel-gray). It would have a big impact on the appearance of the plaza. Not too tall, just tall and pointy enough (fleur de lys pointy) to make it not easy for a drunk hooligan to spontaneously step over to do a "hold my beer, I'm going to run on the glass" activity.
2 to 3 feet is going to be very visually intrusive, and not really sufficient to deter people if they are drunk anyways. Why bother? And if some hooligan injury themselves, so what?
AoD