I grew up in a small town in New Jersey, about twenty miles west. From the highest point in our town, you could make out the outline of the WTC, far off in the distance.
In 2001, I lived in Chicago, and I took a trip to Italy in September of 2001. I remember flying into Newark airport early that month, and marveling (as I always did) about the New York skyline, including the Empire State Building and the WTC.
I returned eight days later, on the first day that flights resumed after 9/11, and I remember flying into Newark again, and there was still smoking climbing into the air around where the WTC once stood.