
Most people will recognize Mecca as the name for the Holy City of Islam. Do you know where the Holy City is? Do you know where it should be? Did it get lost? Was it ever found?
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Source: Ancient Origins
Most people will recognize Mecca as the name for the Holy City of Islam. Do you know where the Holy City is? Do you know where it should be? Did it get lost? Was it ever found?
Source: Ancient Origins
Imagine sand flowing up a hill, defying gravity. Sounds impossible, right? But engineering researchers at …