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Many of America's most prominent statues and monuments were sculpted from granite quarried in Quincy. This story is , quite literally, "as old as the hills." Deep in the geologic past, as continents collided, mountains rose up and were folded; under intense pressure, igneous rock was crystallized into granite. The gray stone ledges that eventually emerged in Quincy after millennia of erosion contained some of the highest quality granite in the world, prized for its hardness and durability.
Houses built here before the 1940s have granite blocks and boulders for foundations. These are exceptional examples.
What building foundation material is used where you live?.