A couple years ago I took a trip to Tokyo and it was fantastic. Top trip so far.
I bet it was crowded.  Tokyo is the most populous metropolitan area in the world
I can believe it, the Shibuya crossing was packed. I've never seen so many people in once place. What surprised me though was how quiet it was.
Shibuya was the site of a castle where the shibuya family lived during the 11th century
Oh wow neat I must have missed that bit of history when I was there. I absolutely loved the train system when I was there. Many if trains were so easy here I wouldnt even bother with a car.
Tokyo is often refered to as a city but it really is a metropolitan prefecture
Right there were a ton of different prefectures all squished together. Some of the prefectures were only the size of a few blocks though. 
Yea tokyo is one of 47 prefectures
Yep, and I'm really excited to see how they handle the Olympic games coming up.  
Yea its going to be crazy having that many more people coming there with an already crowded place.  I  hope it goes well