101.   Two others were destroyed when the towers collapsed.

102.   Though the tower collapsed in a matter of seconds, experts said bringing it down was not as easy as it appeared.

103.   Tucked behind the World Trade Center, the chapel was covered with fine dust after the twin towers collapsed and has not been open to the public since.

104.   When the towers collapsed on live television, telephone traffic from abroad instantly skyrocketed as people called to check on friends and relatives.

105.   A construction worker was killed last March when a light tower collapsed.

106.   The acute power crisis was made worse when two towers connecting power transmission lines between western and eastern Bangladesh collapsed last week.