Alaska - Top ten little known facts

I was researching a cruise for a client recently who wanted to add a land tour to his holiday in Alaska. I was reading about the different tours that were available to him and trying to match them up to his cruise when I stumbled over a website full of unusual facts about Alaska.
I'd always known that Alaska was a pretty special destination to cruise to but I hadn't realised how many unique features it had as well.
I've put together a top ten list of little known facts about Alaska below.............