Some conspiracy theories contend that the collapse of the World Trade Center was caused not solely by the airliner crash damage that occurred as part of the September 11 attacks and the resulting fire
Aerial view of the debris field of the North Tower, 6 WTC, and 7 WTC (upper right). The damaged Verizon Building can be seen left of WTC 7's ruins.
The position of 7 WTC in relation to the other WTC buildings. WTC 1, 2 and 7 collapsed on September 11, 2001.