Today for April Fool's Day, Google Maps had a Pokemon challenge. As best I could find, there were two Pokemon to be found in Korea.
The first, which I found at Gangnam District Office in Seoul (map link), was Raichu. In my excitement to capture him, I only took a screen cap after he'd been caught:
park next to a statue of 송상현 (map link).
I tried this on my friend's phone (set to Korean language) but it didn't allow me to "Start" the chase, so I guess they hadn't translated the Pokedex into Korean?