Question 1

Where is Ueda City Hall?

Accepted Answer

Ueda City Hall is in Ueda, Nagano Prefecture, Japan. You can see its exact position from the map coordinates and the Street View link.

Question 2

Which scene of Summer Wars does Ueda City Hall appear in?

Accepted Answer

Ueda City Hall is a real place that appears in Summer Wars.

Question 3

Can I visit Ueda City Hall?

Accepted Answer

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

Question 4

Where was Summer Wars filmed?

Accepted Answer

Anime and manga are not filmed the way live action is. Their backgrounds are painted from photographs of real locations, and Ueda City Hall is one of those real places.