Mystery of Saudi Arabia's ancient 'gates': 400 stone structures that may be 7,000 years old are spotted on Google Earth, but archaeologists have no idea why they were built
Archaeologists have discovered 400 mysterious stone structures that could be thousands of years old in a remote desert area in Saudi Arabia.
The stone structures- which were found using Google Earth - have been dubbed the 'gates' because they appear to look like field gates from above.
Built across ancient lava domes, some of these strange features are more than four times the length of a football pitch, and experts believe they may be up to 7,000 years old.
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WHAT DO WE KNOW ABOUT THE 'GATES'? The stone walls have been dubbed the 'gates' because they appear to look... read more
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