A little known video footage of 9/11 usually bypassed by TV due the swearing, but still justified and shocking no matter how many times its viewed. Horrifying reactions from the witnesses of the second impact into the World Trade Center. The clip records the final seconds of United Airlines...

Uncommon video not widely seen showing Tower 1 collapse from afar and bystanders reactions on fateful 11th Sept 2001.

A man climbs out the 90th floor on World Trade I and lowers himself down. Incredible and horrific.