The historic riverwalk area of Savannah, Georgia, is paved with mismatched cobblestones. Local residents say that centuries ago the stones provided ballast for ships as they crossed the Atlantic Ocean. When cargo was loaded in Georgia, the ballast stones were no longer needed, so they were used to pave the streets near the docks. Those stones had accomplished their primary…
The historic riverwalk area of Savannah, Georgia, is paved with mismatched cobblestones. Local residents say that centuries ago the stones provided ballast for ships as they crossed the Atlantic Ocean. When cargo was loaded in Georgia, the ballast stones were no longer needed, so they were used to pave the streets near the docks. Those stones had accomplished their primary…