Game crashed when I was trying to build a garden, simple as that. Wasn't very far into the game yet, had built one city and a couple of buildings in there.
Debug log: http://pastebin.com/kD9hwDKC
Memory dump: http://www.sendspace.com/file/temnsx
Edit: I hadn't saved the game yet, so couldn't try to reproduce it. But in my next game building a garden works ok.
