A diagram of three city grids at the same scale showing the differences in dimensions and configuration
<a href="//commons.wikimedia.org/w/index.php?title=User:Fgrammen&amp;action=edit&amp;redlink=1" class="new" title="User:Fgrammen (page does not exist)">Fgrammen</a>
2010-06-13
<span class="int-own-work" lang="en">Own work</span>