Very impressive! Nice work 
Watching. Tutorial. Now.
I’ve now posted a 2-part tutorial series on creating this animated scene! Check them out here! http://www.blendernation.com/2014/10/03/create-and-destroy-a-large-building-in-blender/
Thx for the tut! Brilliant project from start to end. Kudos!
cool… nicely done…
Nice done!