Algodoo

This tower can stand still without falling at his own, but you can interfer just swaying it or destroing some columns.

some parts are not thought out to be the 9/11 attaks but its just a way to you undertand how its collapse, and i made this to not prove any thing about conpiracy, or NIST explanations.

some people made the twin towers too and the empire state building but i not liked the way of they collapse or after some minutes they collapse ats own. and then i have am idea why not make my own tower, there it is