 Lanterns. Lanterns? Yes, hanging in the tower of Christ Church. One if the Brits march by land, and two if they come by sea. Hold it! According to the poem, the lanterns were hung in the North Church, not Christ Church. That was Longfellow's first mistake. See, the old North Church couldn't have been used. Its spire is too stumpy, and Copse Hill lies between it and the shore. The lights would have never been seen in Charlestown.