1.   Towers became slenderer and many had elegant spires set on them.

2.   After dominating the New York skyline for a quarter century, the towers may now become a symbol by their absence.

3.   The towers had become familiar fixtures in our visual memory, a part of the personal geography of many lives.

4.   Who could have guessed the twin towers would become tombstones in a graveyard of these vast proportions?

5.   With our child sleeping and the radio playing wistful music, Mary and I watched the round tower slowly become a silhouette against the night sky.