Question 1

Where is Onarimichi (the remains of Sujigaimon Gate)?

Accepted Answer

Onarimichi (the remains of Sujigaimon Gate) is in Chiyoda, Tokyo, Japan. You can see its exact position from the map coordinates and the Street View link.

Question 2

Which scene of Steins;Gate 0 does Onarimichi (the remains of Sujigaimon Gate) appear in?

Accepted Answer

Onarimichi (the remains of Sujigaimon Gate) is a real place that appears in Steins;Gate 0.

Question 3

Can I visit Onarimichi (the remains of Sujigaimon Gate)?

Accepted Answer

Yes. Onarimichi (the remains of Sujigaimon Gate) is a real place you can visit. Check what it looks like on Street View before you go.

Question 4

Where was Steins;Gate 0 filmed?

Accepted Answer

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