Question 1

Where is Merry Go Round "Dog"?

Accepted Answer

Merry Go Round "Dog" is in Kawasaki, Kanagawa, Japan. You can see its exact position from the map coordinates and the Street View link.

Question 2

Which scene of Golden Time does Merry Go Round "Dog" appear in?

Accepted Answer

Merry Go Round "Dog" appears in EP8 of Golden Time.

Question 3

Can I visit Merry Go Round "Dog"?

Accepted Answer

Yes. Merry Go Round "Dog" is a real place you can visit. Check what it looks like on Street View before you go.

Question 4

Where was Golden Time filmed?

Accepted Answer

Anime and manga are not filmed the way live action is. Their backgrounds are painted from photographs of real locations, and Merry Go Round "Dog" is one of those real places (EP8).