They went and made a 2-D side-scrolling action-adventure game specifically for Art History nerds. I bought this game yesterday because it was released for Linux. It's an XNA port. The game is a gorgeous as it looks in the screenshots. It's richly textured and nicely animated.
It's a little unstable for me. I've had it dump me out to the main menu a few times when changing levels. I was able to continue after replaying the previous level each time. They're still actively patching the game, so hopefully this will go away. My only other gripe is the two-tiered inventory system, it can be hard to use when under pressure. Slight blemishes on an otherwise well executed game.(Link.)