File:Nistncstar1-1-fig2-4.png

Summary
https://en.wikipedia.org/wiki/File:Nistncstar1-1-fig2-4.png Description English: Typical WTC tower architectural floor plan Date Source	NIST NCSTAR1-1 - http://wtc.nist.gov/reports_october05.htm, Figure 2-4, page 20 Author	NIST