UFO Landing Pads, Maybe?

Here's a true Google Earth mystery. These odd formations can be found on air bases in the U.S. and Britain — this one comes from a base outside Norwich, England. The U.K. Ministry of Defense called it a motorcycle range, but other speculate it may be some sort of calibration tool for satellites. No one really knows — and the military isn't saying anything more.

See the "motorcycle range" on Google Maps.

See videos of models falling down.

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