  After an extremely brief overview of the discovery reach for Z' bosons, we
will discuss the physics of Kaluza-Klein(KK) excitations of the Standard Model
gauge bosons that can be explored by a high energy muon collider in the era
after the LHC and TeV Linear Collider. We demonstrate that the muon collider is
a necessary ingredient in the unraveling the properties of such KK states and,
perhaps, proving their existence.
