Ep. 223 - Nix's Mate

The black, pyramidal beacon, called Nix’s Mate, is well known to yachtsmen, sailors, and excursionists in Boston harbor. It rises above a shoal,—all that is left of a fair, green island which long ago disappeared in the sea. In 1636 it had an extent of twelve acres, and on its highest point was a gallows where pirates were hanged in chains.