This is Old St. David’s Episcopal Church in Cheraw, SC, circa 1770.  It was the last church built when the Anglican Church was considered the official church of the colony of South Carolina.  While regular services are no longer held in this building, visitors may obtain a key from the local chamber of commerce during business hours and tour the building.
I didn’t get to tour as my son and I were passing through town on a Sunday afternoon. Maybe next time as I’d love to see the interior.