Wally Wallington is a retired Construction worker from the US who claims to have found a way one person could construct Stonehenge using forgotten technologies, the same technique enabling him to move an entire barn on his own.
In a film, that is taking the internet by storm, he demonstrates his techniques. If Wally is correct then Stonehenge was made using far fewer numbers than anyone could have ever predicted. It all looks pretty feasible to me.
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