Hadrian’s Wall, the multinational UNESCO World Heritage Site, at Steel Rigg in Northumberland National Park in northern England.

Hadrian's Wall, the multinational UNESCO World Heritage Site, at Steel Rigg in Northumberland National Park in northern England.

Hadrian’s Wall, the multinational UNESCO World Heritage Site, at Steel Rigg in Northumberland National Park in northern England.

Hadrian’s Wall, the multinational UNESCO World Heritage Site, at Steel Rigg in Northumberland National Park in northern England.

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