+1. My 3x3 grid of Spot of Whispering Trees looks silly because they are all identical. If there were 3 variants of Spot of Whispering Trees (trees in slightly different locations, or stairs going up from another direction), I think it would go a long way. Of course, the same could be said of any building that you will potentially have multiple copies of: houses, workshops, armories.... not just cultural buildings. Good idea.