You see lumps of concrete - you don't know where they came from or how much they weigh.
And what shape was that?
But you don't know what they are or where they came from. You want them to be sections of the perimeter wall, but simple assertion doesn't hack it.
They were the vertical structural columns, which tilted over as they fell down, after the steel links in the floors of each storey failed and dump each floor onto the floor below
If that's what you really want to see,
Not many showing what looks very like a complete multi-storey rotating restaurant. There can't have been many candidates in the area. For something that had to have fallen 400 metres, it looks surprisingly undamaged. Presumably it rode down on the the floor-by-floor collapse.
Which you haven't done.
Few people have useful intuitions about pictures of fallen down buildings. Even fewer about ones a big at the World Trade Centre. There haven't been many to practice on.