World Trade Center Elevators
Before collapse, North Tower lobby was destroyed, all glass, revolving doors, plus huge slabs of marble (along with significant parts of subbasements). The official story is that this was all done by a jet fuel fireball, on impact, traveling 90+ floors down elevator shafts, emerging from elevator shafts and doing the lobby damage, etc. For evidence, they try to cite that elevator doors in lobby were destroyed. But it is already established in blueprints that elevator access to the lobby from the point jet fuel impact was exceedingly limited.
In oral testimony, FDNY Lt. William Walsh (see NYT) explicitly says that the elevator doors which were destroyed in the lobby were from shafts that served only the LOCAL floors - floors 30-35 and below (roughly). Those elevator shafts don't reach the 95th floor where the plane hit. Other elevator shafts go higher - the Express elevators -- BUT Walsh also explicitly says that the EXPRESS elevator doors were "INTACT" as far as he could tell. If Walsh is correct, it renders the jet-fireball-lobby destruction theory utterly impossible. Here's Walsh, see pages 7-8 roughly http://graphics8.nytimes.com/packages/pdf/nyregion/20050812_WTC_GRAPHIC/9110442.PDF
End of Note
http://www.ae911truth.org/docs/WTC_Blueprints_Elect-Arch-10-19-08_from_Japan/001.pdf NEW CORE TOWER ELEVATORS SCHEMATIC SECTIONS (one page)