Question 1

Where is Kyu-Iwasaki-tei Gardens?

Accepted Answer

You can see the exact position of Kyu-Iwasaki-tei Gardens from the map coordinates and the Street View link.

Question 2

Which scene of Fate/strange Fake does Kyu-Iwasaki-tei Gardens appear in?

Accepted Answer

Kyu-Iwasaki-tei Gardens appears in EP8 of Fate/strange Fake.

Question 3

Can I visit Kyu-Iwasaki-tei Gardens?

Accepted Answer

Yes. Kyu-Iwasaki-tei Gardens is a real place you can visit. Check what it looks like on Street View before you go.

Question 4

Where was Fate/strange Fake filmed?

Accepted Answer

Anime and manga are not filmed the way live action is. Their backgrounds are painted from photographs of real locations, and Kyu-Iwasaki-tei Gardens is one of those real places (EP8).