Question 1

Where is Higashiyama Mount Peak Park Observatory?

Accepted Answer

Higashiyama Mount Peak Park Observatory is in Kyoto, Japan. You can see its exact position from the map coordinates and the Street View link.

Question 2

Which scene of Tying the Knot with an Amagami Sister does Higashiyama Mount Peak Park Observatory appear in?

Accepted Answer

Higashiyama Mount Peak Park Observatory appears in OP2 of Tying the Knot with an Amagami Sister.

Question 3

Can I visit Higashiyama Mount Peak Park Observatory?

Accepted Answer

Yes. Higashiyama Mount Peak Park Observatory is a real place you can visit. Check what it looks like on Street View before you go.

Question 4

Where was Tying the Knot with an Amagami Sister filmed?

Accepted Answer

Anime and manga are not filmed the way live action is. Their backgrounds are painted from photographs of real locations, and Higashiyama Mount Peak Park Observatory is one of those real places (OP2).