Question 1

Where is Chu-Jaku Gate Ruins?

Accepted Answer

Chu-Jaku Gate Ruins 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 Sword Art Online II does Chu-Jaku Gate Ruins appear in?

Accepted Answer

Chu-Jaku Gate Ruins appears in EP1 of Sword Art Online II.

Question 3

Can I visit Chu-Jaku Gate Ruins?

Accepted Answer

Yes. Chu-Jaku Gate Ruins is a real place you can visit. Check what it looks like on Street View before you go.

Question 4

Where was Sword Art Online II filmed?

Accepted Answer

Anime and manga are not filmed the way live action is. Their backgrounds are painted from photographs of real locations, and Chu-Jaku Gate Ruins is one of those real places (EP1).