Question 1

Where is Adachi Yanaka Post Office?

Accepted Answer

Adachi Yanaka Post Office is in Adachi, Tokyo, Japan. You can see its exact position from the map coordinates and the Street View link.

Question 2

Which scene of Lycoris Recoil does Adachi Yanaka Post Office appear in?

Accepted Answer

Adachi Yanaka Post Office appears in EP2 of Lycoris Recoil.

Question 3

Can I visit Adachi Yanaka Post Office?

Accepted Answer

Yes. Adachi Yanaka Post Office is a real place you can visit. Check what it looks like on Street View before you go.

Question 4

Where was Lycoris Recoil filmed?

Accepted Answer

Anime and manga are not filmed the way live action is. Their backgrounds are painted from photographs of real locations, and Adachi Yanaka Post Office is one of those real places (EP2).