To set a destination of path finding while paying no attention to operation for inputting the destination.SOLUTION: A destination conjecture device includes: a retrieval information acquisition section for acquiring retrieval information including information on a retrieval term retrieved in a retrieval site; an attribution granting section for granting attribution information representing attribution of a retrieval term to the retrieval term; a retrieval term evaluation section for obtaining frequency of appearance of a retrieval term whose attribution is in common for each attribution; and a conjecture destination candidate extraction section for extracting a retrieval term related to a destination among retrieval terms included in attribution whose frequency of appearance satisfies a predetermined criterion as a conjecture destination candidate.SELECTED DRAWING: Figure 1
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