Question 1

Where is National Diet Building?

Accepted Answer

National Diet Building 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 Apocalypse Hotel does National Diet Building appear in?

Accepted Answer

National Diet Building appears in EP11 of Apocalypse Hotel.

Question 3

Can I visit National Diet Building?

Accepted Answer

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

Question 4

Where was Apocalypse Hotel filmed?

Accepted Answer

Anime and manga are not filmed the way live action is. Their backgrounds are painted from photographs of real locations, and National Diet Building is one of those real places (EP11).