One of the reasons aviation intrigues me is the spatial/geographical aspect of the industry, and I find resources like Airline Route Maps to be both useful and endlessly engaging.
But I want to recommend a new site I’ve been enjoying for the past few weeks: Strange Maps. The blogger posts unusual maps that he comes across. Today’s entry is a Yugoslav map of the planned invasion of the United States; other maps have included a cartogram of the United States based on number of country music songs referencing a state and a map of Europe done in marzipan. Strange Maps: highly recommended for your feed reader or bookmarks.
Evan Sparks's Aviation Policy Blog 