Portchester Castle is one of history’s “must see places”. It is the best preserved example of a Roman fort north of the Alps and within its walls , is one of the best preserved examples of a medieval square keep. You get two for the price of one at Portchester! Whereas, in many square keeps, access is only available on the ground floor, at Portchester 3 floors of the keep are open to the public and covid permitting, so is the rooftop with a fine view over the harbour. Originally built to curb the activities of “Frankish Pirates” it then took on a medieval identity with many key events in English history are associated with it such as the battles of Crecy and Agincourt.