That is a bit of an unfair answer Georg. It is true of course that some places are known by their name. When the roads were numbered (and in the West this started in Roman times) an address could be given as a location between distance markers on a certain road.
With addresses that are not fixed (such as boats thare are more or less permanently moored) the location is often described as: "across from a known reference mark".
In the mean while many modern countries have introduced the postcode (or ZIP) system. Naming the country and postcode (ZIP code) narrows down the location significantly.
But I would be willing to bet, that now or in a few years, you would be able to give the GPS coördinates and that would be sufficient.
