Got an email with a very cool history lesson.

During World War II the Army Corps of Engineers needed to hide the Lockheed Burbank Aircraft Plant to protect it from a Japanese air attack. They covered it with camouflage netting and made it look like a rural subdivision from the air.

Before:

 airfield01.jpg

After:

 airfield02.jpg

airfield02b.jpg

airfield03.jpg

airfield04.jpg

airfield05.jpg

airfield06.jpg

airfield07.jpg

airfield08.jpg