And speaking of cardboard cityscapes: 

German artist Evol is well known for his street art designs and his ability to transform any object into incredibly detailed cityscapes and other urban environments. Using recycled cardboard, he creates realistic buildings and other structures with the use of spray paint and stencils. His uncanny attention to detail reveals intricacy from light, shadows and textures in his &lsquo;city&rsquo;.

(via Artist Builds Realistic Urban Cityscape Using Recycled Cardboard - DesignTAXI.com)