Step back into Durham's history on World Heritage Day
Free tours and trails will be staged around ancient university buildings including the castle and Palace Green library.
World Heritage
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England's East coast bids for same status as Great Barrier Reef and Grand Canyon
Coastal sites including The Wash, Minsmere and Wallasea Island want to be included on the Unesco World Heritage site list.
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From migrating black-tailed godwits to the snaking waterways of Wallasea Island, these images show why the east coast belongs on Unesco's prestigious list.