This image was generated as part of a PBS special on America's energy and communications infrastructure called America Revealed. They created some amazing graphics to illustrate these grids, and how and where they work. 

This is a map of dead bodies transported across the USA. Can you tell where that location is in the Northeast and Why ?

Ahhh the electricity grid across our great land.

This is all the pizza deliveries by bicycle in Manhattan on given Friday night. Each delivery person has a 8-9 hr shift and can deliver 30-40 pizzas. Now I'm hungry just looking at this map.

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The NYC Metro area showing flights that connect the rest of the USA. This map shows 50,000 flights and 2 million passengers a day. Can you pick out the airports ?

MORE PICS AND MAPS HERE