The Numerical Intersection

http://talkstephenking.blogspot.ca/2009/09/9-11-and-dark-tower.html

"Located at the intersection of 9th Street and Main St, at 911 Main. Some people think that the address changed after September 11, 2001, however the address did NOT change."
http://en.wikipedia.org/wiki/Commerce_Tower

http://www.kchistory.org/cdm4/item_viewer.php?CISOROOT=/Eldridge&CISOPTR=21&CISOBOX=1&REC=8

"No tenants have signed leases for the 911 Walnut building, which has been vacant since the federal government left in 1995." 
http://www.bizjournals.com/kansascity/stories/2001/04/30/story2.html

(formerly Fidelity National Bank & Trust Building, Federal Office Building and 911 Walnut) is a twin-spire, 35-story, 471-foot (144 m) converted structure in Kansas City that is Missouri's tallest apartment building... 
http://en.wikipedia.org/wiki/909_Walnut


http://patternsofsynchronicty.blogspot.ca/2014/06/616-666-911-191.html

http://data-loaf.blogspot.ca/2014/07/patterns-shapes-and-symbolism.html