Question 1

Where is Holland Zaka?

Accepted Answer

Holland Zaka is in Nagasaki, Japan. You can see its exact position from the map coordinates and the Street View link.

Question 2

Which scene of Iroduku: The World in Colors does Holland Zaka appear in?

Accepted Answer

Holland Zaka appears in EP5 of Iroduku: The World in Colors.

Question 3

Can I visit Holland Zaka?

Accepted Answer

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

Question 4

Where was Iroduku: The World in Colors filmed?

Accepted Answer

Anime and manga are not filmed the way live action is. Their backgrounds are painted from photographs of real locations, and Holland Zaka is one of those real places (EP5).