Brilliant reply, heathfield. Very much depends on whether you want the answer to refer to a place that is only to be looked at for a matter of hours at most, or somewhere that you would want to return to and live. There are lots of places which for many people would meet either criterion, some that would even meet both. But as to naming one absolute - that is an unrealistic request. In my opinion there is no such single place in the world, instead there will be several which satisfy you on both counts, each probably with some drawback neverteless. For some, myself included, the ideal is to move at will between two good places. This leaves you refreshed and content.