More on Weissnichtwo from Infoplease:

• Weissnichtwo - Weissnichtwo (vice-ncecht-vo). I know not where; Utopia; Kennaquhair; an imaginary place in ...
• Utopia - Utopia properly means nowhere (Greek, ou topos). It is the imaginary island of Sir Thomas More, ...
• Dictionary of Phrase and Fable: W - Definitions, origins, and illustrative excerpts for words, phases, and literary allusions starting with "W"