Hadrian's Wall is part of the UNESCO World Heritage Site called Frontiers of the Roman Empire. It was made a UNESCO World Heritage Site in 1987. It shares this listing with the Antonine Wall in Scotland and the German fortifications known as the "Limes Germanicus". Hadrian's Wall was the first of two "great walls" created by the Romans in Great Britain. Its ruins are more visible than the lesser known Antonine Wall to the north.