Any history (NYC history, to be precise) enthusiast should love this series. Ric Burns does a great job of directing a very long, yet very interesting story on NYC's history, all the way back from the "beginning", when the Dutch discovered the land. Supposedly, the series was originally 7 episodes, and then the events of 9/11 took place, which prompted them to make the 8th episode, which is dedicated to the World Trade Center. Just like the previous 7 episodes on the history of NYC, this 8th episode covers the entire history of the World Trade Center.
I've tried to watch several other geographical history documentaries, and they tend to get slow and kind of boring, but not this. I've watched it several times... all 8 episodes. It's still GREAT.
If you have Amazon Prime, it's currently playing there, so you can stream it "for free" (requires the Amazon Prime membership, obviously). That can change at any time, so if it's still available there, do yourself a favor and get on that!