perfective of 見ている (mite iru); perfective present continuous of 見る (miru)

(idiomatic) to keep a secret when asked about it, but let it slip inadvertently when chatting on another occasion

national park

a forest-park, arboretum

park that is designated by nation and maintained by prefecture (in Japan, 都(と)道(どう)府(ふ)県(けん) (todōfuken)) or other local government; quasi-national park

parkway

頬が落ちる: (idiomatic) find something so tasty that one's cheeks fall

頬っ辺が落ちる: (idiomatic) find something so tasty that one's cheeks fall

tea leaf

Short for 落ち物パズルゲーム (ochimono pazuru gēmu).