|UNESCO World Heritage Site|
|Location||The valleys of the Rhine and the Danube; Britain.|
|Includes||Hadrian's Wall, Roman defenses along the Cumbrian coast, and the Limes Germanicus; the Antonine Wall is a later addition to this site|
|Criteria||Cultural ii, iii, iv|
|Inscription||1987 (11th Session)|
|Buffer zone||5,225.7 ha|
The term has been extended to refer to the frontier defences in other parts of the empire, such as in the east and in Africa. It is used by the World Heritage site bureaucracy to include the two walls in Britain, the Antonine Wall and Hadrian's Wall.
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