Dover is the name of a number of towns and cities.
In the United States it is the capital city of Delaware.
In England, it is an English Channel port in the county of Kent, notable for its white chalk cliffs - one of Britain's best-known natural landmarks - and its proximity to France. See Dover UK
It is a small town in south east Tasmania on an inlet of the D'Entrecasteux Channel - the most southerly town of any size in Australia.