Anyone know in what rough area the primary sanctuary location - Helen's sanctuary - is located? I know they've always kept it somewhat vague and not really said specifically. But the destroyed bridge, and the general feel always made me think that it was sort of in the south-Brooklyn area of NYC. I always got the feeling that it was sort of like Gotham City ... some fictional take on New York City.
That was until I started watching season four. The first episode, when Helen goes back in time and is working with Holmes in London, she and he are in that central, round room with all the monitors (sans the monitors of course). So that would seem to be a pretty clear indication that it is in London.
Of course, that would seem to be disproven by the fact that most of the characters (original Source Blood Group aside) all speak with a North American accent, lending back towards the "Gotham City" style.
Any clues or ideas?