Question 1

Where is Yagisawa(Bus)?

Accepted Answer

Yagisawa(Bus) is in Nishitokyo, Tokyo, 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 Yagisawa(Bus) appear in?

Accepted Answer

Yagisawa(Bus) appears in OVA of The Future Diary.

Question 3

Can I visit Yagisawa(Bus)?

Accepted Answer

Yes. Yagisawa(Bus) 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 Yagisawa(Bus) is one of those real places (OVA).