The north tower is 6 feet taller as indicated in the plans. Seems like a reasonable facsimilie to the real thing. There are six phases to every project 1) enthusiasm, 2) disillusionment, 3) panic, 4) search for the guilty, 5) punishment of the innocent, 6) praise for the non-participants. - Guy Tozzoli. More @Wikipedia
Hover over any link to get a description of the article. Please note that search keywords are sometimes hidden within the full article and don't appear in the description or title.