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Heart of Neolithic Orkney - The group of Neolithic monuments on Orkney date back 5,000 years.

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The Forth Bridge - The Forth Bridge opened in 1890 and continues to operate as a passenger and freight rail bridge to this day.

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Pontcysyllte Aqueduct and Canal -

The Pontcysyllte Aqueduct and Canal were engineered by the famous civil engineer Thomas Telford. The project was completed at the end of the 18th century.

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Maritime Greenwich - The cluster of buildings and the park in which they are located were built over many decades in the 17th and 18th centuries.

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Castles and Town Walls of King Edward in Gwynedd - This collection of castles is described as the finest example of military architecture in Europe.

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Stonehenge - Stonehenge is not only a UNESCO Heritage Site, but also one of the best known ancient wonders of the world.

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The Lake District - Its valleys were modelled by glaciers during the ice age.

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Jurassic Coast - The coast in East Devon displays a sequence of Triassic, Jurassic, and Cretaceous rock formations displaying 185 million years of Earth's history.

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Hadrian’s Wall - Hadrian’s Wall is a defensive fortification built by the Romans in 122 CE.

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Kew Gardens - Kew Gardens houses the largest botanical collection in the world.

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Maritime Mercantile City, Liverpool - The city of Liverpool became the main port for the mass movement of people to the 'New World'.

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Blenheim Palace - Blenheim Palace is a monumental English palace situated in Oxfordshire.

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City of Bath - Bath was founded by the Romans and its history is clearly visible.

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Durham Castle and Cathedral - Durham Castle and Cathedral are the largest examples of Norman architecture in England.

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The Old and New Towns of Edinburgh - The 'Old Town' is home to medieval fortresses and the 'New Town' was constructed during the Georgian era between 1767 and 1890 as a collection of seven new towns.

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Westminster Abbey - Westminster Abbey is London's most famous landmark. Over 3000 individuals have been buried or commemorated here.

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Tower of London - The Tower of London is a monumental castle located on the north bank of the River Thames.

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St Augustine's Abbey and St Martin's Church - St Martin’s Church and the ruins of St Augustine’s Abbey together reflect the history of both Catholicism and Protestantism in Britain.

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Blaenavon Industrial Landscape - Blaenavon Industrial Landscape was the world's largest producer of iron and coal in the 19th century.

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Canterbury Cathedral - This Kent cathedral displays a mix of Roman and Gothic architecture. Following the murder of Archbishop Thomas Becket in 1170 CE, the cathedral became a place of pilgrimage.

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St George, Bermuda - St George in Bermuda is one of the earliest English settlements and the oldest English town in the 'New World'.

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Ironbridge Gorge - The iron bridge across the gorge was the first in the world and stands as a symbol of the Industrial Revolution.

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St Kilda - St Kilda is an isolated cluster of islands off the coast of Scotland.

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The Ruins of Fountains Abbey - The Ruins of Fountains Abbey is one of the few 18th-century gardens to survive in its original form.

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Giant's Causeway and Causeway Coast - The Giant's Causeway and Causeway Coast was formed by volcanic activity over 50 million years ago.

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Saltaire Village - Saltaire in West Yorkshire is a well-preserved 19th century industrial village.

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New Lanark -

New Lanark was a purpose-built mill village in Scotland that was founded in 1785.

See also: World Heritage Sites that could disappear anytime

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