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7000 years? Thats so cool that they are older than pyramids. It’s a world wonder how these neolithic structures remain and stand the test of time in the absence of advanced construction materials.
7000 years? Thats so cool that they are older than pyramids. It’s a world wonder how these neolithic structures remain and stand the test of time in the absence of advanced construction materials.
RE: The Barnenez Cairn, Europe's largest Neolithic Mausoleum, built 7,000 years ago