This is something I did when New York was asking for designs for a 9/11 memorial. The picture combines a photo of Ground Zero with Bruegel the Elder's Tower of Babel.
I don't want to weaken its ambiguity, but have to mention that it is not my intent to suggest any sort of divine intervention.
9/11 was a 100% human production, and the fundamentalists of every stripe who claim to know God's intent -- and always shrink it to fit their own small-minded hatreds and delusions -- don't know God any better than I do. End of editorial.