1.   In the background, left, smoke billows from where the twin towers of the World Trade Center use to stand.

2.   Like many born without a hard-wired sense of uptown and downtown, I depended on the twin towers to navigate through Manhattan.

3.   The twin towers onnce stood at right.

4.   They walked toward Stuyvesant High School and then up the West Side Highway as the twin towers collapsed behind them.