View of Dover Castle from below. It is known as the key of England because of its historical role since medieval times.
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A member of the Royal Collection staff poses beside a portrait of the Duke of Wellington in the Waterloo Chamber at Windsor Castle.
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A view of the Tower of London with the top of the Shard behind it.
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Arundel castle can be dated back to 1067. The castle was damaged in the English Civil War and then restored in the 18th and 19th centuries.
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Edinburgh Castle in Scotland.
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Autumn colours at Warwick castle on the river Avon in England.
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