Shadows

Here is a great shot of a blimp over the beaches of Clearwater Beach, Florida. Thanks: MTBguy

This is Calgary Tower in Calgary, Alberta, Canada. At 190 metres, slightly taller than the Space Needle, so I'm told. Thanks to Jordon and Jonathan Wilkins.

This "Elephant Cage" in Elmendorf Air Force Base, Alaska is part of the DOD World Wide High Frequency Direction Finding System. More information on the system is availble from the Federation of American Scientists. Thanks: Gabe

The Washington Monument in Washington DC is over 500 feet high and offers fantastic views over the capital. It looks pretty cool from the air as well, check out the size of that shadow!

Here's a shot of Large windmill clusters in the Mojave desert, California. Scroll around a bit and you'll see there's lots of them. Also quite cool in the East of this shot there's a collection of what I'm assuming are…

Well it's my own fault really. Since I posted that I hadn't seen any planes in flight, we have been absolutely inundated with submissions proving that I was completely wrong. Glad to hear it, 'cos some of these are really…