High-rise building equipped with Multi-Frequency Quieting Building System (MFQBS) <a rel="nofollow" class="external autonumber" href="http://www.ecs.csun.edu/~shustov/Topic9.htm">[1]</a>. The image was rendered by Valentin Shustov, CSUN.
<a href="//commons.wikimedia.org/wiki/User:Shustov" title="User:Shustov">Shustov</a>
CC BY-SA 3.0
<span class="int-own-work" lang="en">Own work</span>