Question 1

Where is Hidasoja?

Accepted Answer

Hidasoja is in Takayama, Gifu Prefecture, Japan. You can see its exact position from the map coordinates and the Street View link.

Question 2

Which scene of Hyouka does Hidasoja appear in?

Accepted Answer

Hidasoja appears in EP21 of Hyouka.

Question 3

Can I visit Hidasoja?

Accepted Answer

Yes. Hidasoja is a real place you can visit. Check what it looks like on Street View before you go.

Question 4

Where was Hyouka filmed?

Accepted Answer

Anime and manga are not filmed the way live action is. Their backgrounds are painted from photographs of real locations, and Hidasoja is one of those real places (EP21).