The largest and most northerly of the chain of Martello towers thrown up against a threatened Napoleonic invasion around 1808–12. Unlike the round drums further down the coast, this one is a quatrefoil — four towers fused into a clover shape for four heavy guns, built from close to a million bricks. It stands on the spit south of Aldeburgh, the last trace of the vanished fishing hamlet of Slaughden. The Landmark Trust rents it as a holiday let, so it’s the outside you come to see.
