Question 1

Where is Honnoriya?

Accepted Answer

Honnoriya 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 March comes in like a lion does Honnoriya appear in?

Accepted Answer

Honnoriya appears in EP1 of March comes in like a lion.

Question 3

Can I visit Honnoriya?

Accepted Answer

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

Question 4

Where was March comes in like a lion filmed?

Accepted Answer

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