One thing I'm having trouble with is the geography of the show. They've given some obvious locations and/or landmarks, but nothing makes sense. The grounder village of tonDC is obviously Washington DC as we saw a sign and one of the monuments (the Lincoln Memorial I believe it was). So, we know this is supposed to be right on the east coast of the United States. However, there are no mountains anything like Mount Weather near DC and where the heck did all that jungle and the desert/dead zone come from?
I realize that there was a nuclear war almost 100 years ago, but that seems like the lay of the land has changed way too much.