Picture is wrong, WTC7 also had a mast on top, it was the first thing i noticed in the video of its collapse. If you watch carefully the mast starts to drop before the outer walls meaning the building core was taken out first forcing it to collapse on itself rather than falling over.
WTC7 | Controlled Demolition - Side By Side
https://files.catbox.moe/y2fsrq.gif
Not so obvious from that video however there is one from a different angle and much closer where you can see the core collapse inwards before the outer structure.
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