Posing more as I find them:
Ctrl+W = Cycles through wall types for city.
Shift+Ctrl+L = Lose the game
Shift+Ctrl+V = Win the game (eliminates all other factions)
The one thing I would really like that I haven't been able to find yet is a way to "meet" all of the other factions so I can watch their power rankings while running AI only mode.