Left: People watching the collapse of the area around the World Trade Center on Tuesday afternoon. Right: Couple witnessing the collapse of building 7 on Tuesday afternoon, about ten blocks north of the site. Very shortly after this picture was taken, the crowd panicked and ran north. By Tuesday evening, the police barriers had been moved farther north. CONTINUE

Other 911 Stories:  Attack on the Pentagon | Window of Horror | A Resident's View | New York September 11