He did not like working on the 105th floor of the north tower.

She worked on the 102nd floor of the north tower, and had not been heard from in three days.

She was on the 106th floor of the north tower.

He worked on the 88th floor of the north tower.

They had provided him with a room in the north tower.

That week, he was moved to days on the 92nd floor of the north tower.

The north tower, which had been hit 16 minutes before the south, was still standing.

The second day on the job, Thomas, 21, was sent to the 95th floor of the north tower.

Below the southern wall of what had been the north tower.

Several minutes later, they were on the street, when the north tower fell.