How to build Stonehenge in your backyard

[Sam I Am]

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[DallasCowpoke]

I'm not sure that 2 stones technique is going to have the same results on soil as it so easily appears to do on a concrete slab.

Also, is he saying they potentially used water pressure to displace the sand? 'Cus if so, how in the world would they be able to create that kind?