Charleston’s history as a vibrant port city is a direct link to the cobblestone streets that still remain today. The stones that pave the streets were originally used as ballast for the empty trading sailing ships that would call on Charleston. As they loaded their goods, the weight of the stones was no longer needed. The discarded stones would then be used to pave the streets. That’s why all the cobblestone streets in Charleston are clustered by where the piers were. This beautiful example is Chalmers Street.