Ok this building
FIRE STORM: WTC 7 stands amid the rubble of the recently collapsed Twin Towers. Damaged by falling debris, the building then endures a fire that rages for hours. Experts say this combination, not a demolition-style implosion, led to the roofline "kink" that signals WTC 7's progressive collapse.
Thats one answered question!..but a question for you ..why would the CIA blow up this building?