City of London... In USA / London Bridge sits in the United States in Lake Havasu City and is a treaty of international water rights for the city of London and the Roman Empire... Think International Water treaty rights.... The dock goes to the water [like trafficking] and it is well defined in the gate system showing that it is a piece of England's territory... There are post office boxes to mark it off along with a gated fence around it and a plaque stating that it belongs to the city of London. There's a door that goes into underneath the bridge that would lead into the tunnels...