I was struck by the rust streaking on this church in the evocatively named Weeping Water, NE (pop. 1003). The church seemed to be weeping too! At first I thought it must be derelict, but I think the staining is a sort of natural patina that grows from flecks of iron in the limestone—the Weeping Water Public Library has the same facade, also out of stone from the town quarry, which is listed as the largest limestone mine in the state.