It's not bad...but it couldn't even fit an elevator [or stairs]. Also, the top is crowded...ok build, but the lack of detail is disturbing. One last note: if your face is any indication, your a huge social outcast at your school.
I love this whole thing. I like the "welcome center" at the base of the tower too. It's very Frank Lloyd Wright. It actually reminds me a little bit of his "Falling Water" house.
I like all the details. I visited the CN Tower in Toronto Ontario once and it was very much like this so I can easily imagine how the view would look through the eyes of the mini figures. The water idea is also very clever.