
Orford Castle in Suffolk exemplifies 12th-century royal military architecture, built by Henry II between 1163 and 1175 to counter the power of local nobles and defend the coast against invasion. The castle's distinctive polygonal tower keep remains remarkably intact, allowing visitors to explore from basement level through lower and upper halls to the roof, where views extend seaward to Orford Ness. The keep contains a maze of passages connecting to the chapel, kitchen, and chambered turrets, creating an intricate defensive structure. Built when Orford was Suffolk's second-most important trading port after Ipswich, the castle remains a testament to medieval engineering and royal authority under English Heritage management.