When does the revolving stop?

Question

Starting with the smallest: An electron/proton revolves around the nucleus of an atom which makes up the skin of your body, and the Earth you stand on. The Earth spins and revolves around the sun. Our sun spins and revolves around the center of the Milky Way Galaxy in one of the many arms extending outward into space. So what does our Galaxy revolve around?

Answer 1

Our galaxy is part of a galaxy supercluster, which revolves around a center of gravity - see http://en.wikipedia.org/wiki/Virgo_Supercluster

As far as we know, the revolving stops there, unless the entire universe revolves around something.