Yeah, came in to say Enslaved. Bit easy, but beautiful game to play.
I'd also recommend Fragile Dreams: Farewell Ruins of the Moon for the Wii (if that game even came out in the US). Post apocalyptic Tokyo, but entirely serene and eerily quiet-like.
--
Still the number one reason for the success of the Internet.
http://img.photobucket.com/albums/v192/FAH_Frenchie/YANsig01.jpg