Question 1

Where is Maruoka Castle?

Accepted Answer

Maruoka Castle is in Sakai, Fukui, Japan. You can see its exact position from the map coordinates and the Street View link.

Question 2

Which scene of NIPPON SANGOKU does Maruoka Castle appear in?

Accepted Answer

Maruoka Castle appears in EP8 of NIPPON SANGOKU.

Question 3

Can I visit Maruoka Castle?

Accepted Answer

Yes. Maruoka Castle is a real place you can visit. Check what it looks like on Street View before you go.

Question 4

Where was NIPPON SANGOKU filmed?

Accepted Answer

Anime and manga are not filmed the way live action is. Their backgrounds are painted from photographs of real locations, and Maruoka Castle is one of those real places (EP8).