Question 1

Where is Hotel Kinugawa Gyoen?

Accepted Answer

Hotel Kinugawa Gyoen is in Nikkō, Tochigi, Japan. You can see its exact position from the map coordinates and the Street View link.

Question 2

Which scene of The Future Diary does Hotel Kinugawa Gyoen appear in?

Accepted Answer

Hotel Kinugawa Gyoen appears in EP13 of The Future Diary.

Question 3

Can I visit Hotel Kinugawa Gyoen?

Accepted Answer

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

Question 4

Where was The Future Diary filmed?

Accepted Answer

Anime and manga are not filmed the way live action is. Their backgrounds are painted from photographs of real locations, and Hotel Kinugawa Gyoen is one of those real places (EP13).