And what a hot shot furnace it is. You're surely wondering what that sign says:
U.S. SHOT FURNACE
This structure is a hot shot furnace for heating cannon balls to be shot at wooden vessels and to set them on fire. It is part of the water battery built by the U.S. (1842-1844) when this side of the moat was filled and guns were mounted on the stone arcs behind the sea wall. |