Finial

Today's the day .......................... for roof top ornamentation

fin·i·al n. 1. Architecture A sculptured ornament, often in the shape of a leaf or flower, at the top of a gable, pinnacle, or similar structure

Don't know what made me look up today and notice this fancy bit of roof top ornamentation.

I wonder who was responsible for its creation - and whether it signified something in particular .......................?