Question 1

Where is Uoman?

Accepted Answer

Uoman is in Miura, Kanagawa, Japan. You can see its exact position from the map coordinates and the Street View link.

Question 2

Which scene of Lucky☆Star does Uoman appear in?

Accepted Answer

Uoman appears in EP6 of Lucky☆Star.

Question 3

Can I visit Uoman?

Accepted Answer

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

Question 4

Where was Lucky☆Star filmed?

Accepted Answer

Anime and manga are not filmed the way live action is. Their backgrounds are painted from photographs of real locations, and Uoman is one of those real places (EP6).