I believe that Takayama should be more famous and popular sightseeing place of Japan!
Takayama has the old style of the street that you can feel the historical part of Japan. And Takayama has a very rich nature! You can go hiking, caving, rafting, and camping to see and feel the rich nature there.
Oh, and also Takayama holds a market that is nominated as one of the greatest markets of Japan!