Question 1

Where is Joju-in?

Accepted Answer

Joju-in is in Kamakura, Kanagawa Prefecture, Japan. You can see its exact position from the map coordinates and the Street View link.

Question 2

Which scene of Elfen Lied does Joju-in appear in?

Accepted Answer

Joju-in appears in EP1 of Elfen Lied.

Question 3

Can I visit Joju-in?

Accepted Answer

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

Question 4

Where was Elfen Lied filmed?

Accepted Answer

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