Orford Castle

Orford Castle is a castle in the village of Orford, Suffolk, England, located 12 miles (20 km) northeast of Ipswich, with views over the Orford Ness. It was built between 1165 and 1173 by Henry II of England to consolidate royal power in the region. The well-preserved keep, described by historian R. Allen Brown as "one of the most remarkable keeps in England", is of a unique design and probably based on Byzantine architecture. The keep still stands among the earth-covered remains of the outer fortifications.

• http://en.wikipedia.org/wiki/Orford Castle