I often wonder but 90 years on after WW2, if hitler and his nazi's had of won, 90 years later would life be better now...
Hitler would have continued to seize and capture city by city, until he had every country under his control except for Russia, America and their Allies, Japan etc, at some point Germany would be pretty much all of Europe and well, with a super power controlling all of europe and the UK all manufacturing ARMS at a staggering rate taking over fleets of ships and planes..
We'd eventually get to a very messy point where was has to take place between Germany (whole of Europe) America and Russia (What possibilities here lay endless to speculation) my own opinion would be with German's help Japan would take over all of asia while Australia layed like sitting ducks to be take over..
Let's say Germany won, and just to teach japan a lesson for trusting them, took over japan with sheer force, we end up with all of Asia, Australia, Europe, against the Russians and Americans, but with all the arms being manufactured across most of the planet in favor of Germany it's only a matter of time before the nuclear missile was ready, but I got a feeling America would not have the chance to even worry about nuclear weapons when most of the planet is now your enemy.
In this instance, Hitler wins, turns against his allies eventually taking over most of the planet, now 90 years on, all the leaders are dead, uprisings begin, BUT, and it's really a big BUT.
*1 Global Nation *1 Power *1 Language
You'd be free to travel anywhere anytime, silly little countries like Syria would not exist it would all be occupied, countries wait, what countries, any "little" groups who make arms I'm sure they'd be dealt with very quickly.
We'd have no wars anywhere!