Photo credits

Photos from Wikimedia Commons, used under the licences shown. Thanks to their authors.

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  Edinburgh Castle crowning its dark rock above the green slopes of Princes Street Gardens under a clear blue sky

  Matti Blume · CC BY-SA 4.0 · colours and contrast edited

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  Edinburgh Castle on its crag seen from the Grassmarket, with Victorian stone buildings in the foreground and the castle walls rising behind

  Stephencdickson · CC BY-SA 4.0 · colours and contrast edited

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  The castle Esplanade at the opening of the day, with the gatehouse and the castle walls seen across the empty parade ground

  Daniel Kraft · CC BY-SA 3.0 · colours and contrast edited

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  The gatehouse entrance to Edinburgh Castle from the Esplanade, with the royal arms above the arch and a statue in a niche on each side

  Kolforn · CC BY-SA 4.0 · colours and contrast edited

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  Inside the Portcullis Gate: the raised wooden portcullis above a stone archway, with daylight beyond the passage

  Christopher Steinle · CC BY 3.0 · colours and contrast edited

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  The Great Hall of Edinburgh Castle: the stone fireplace with suits of armour, spears fanned out on the red wall and the chequered floor

  Osama Shukir Muhammed Amin FRCP(Glasg) · CC BY-SA 4.0 · colours and contrast edited

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  Mons Meg, the huge medieval siege cannon, on its carriage with stone cannonballs, with the Scottish saltire flying behind

  Bsea · CC BY-SA 3.0 · colours and contrast edited

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  The One O'Clock Gun, a green field gun pointing over the ramparts next to a stone sentry box on the castle wall

  Nilfanion · CC BY-SA 3.0 · colours and contrast edited

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  St Margaret's Chapel, the small 12th-century stone chapel on the castle rock under a dramatic sky

  Kim Traynor · CC BY-SA 3.0 · colours and contrast edited

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  The Scottish National War Memorial in Edinburgh Castle: the weathered stone building with its tall central bay and a flag flying above

  Nilfanion · CC BY-SA 3.0 · colours and contrast edited

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  Edinburgh Castle on its rock above the Old Town rooftops, with the tall Gothic spire of a church rising beside it

  Saffron Blaze · CC BY-SA 3.0 · colours and contrast edited

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  The Palace of Holyroodhouse: the sandstone front with its two towers topped by conical turrets, seen across the forecourt

  Kim Traynor · CC BY-SA 3.0 · colours and contrast edited

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  The ruined nave of Holyrood Abbey, with the great pointed window and carved stonework open to the sky

  Ludi Ling · CC BY-SA 3.0 · colours and contrast edited

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  Arthur's Seat and the cliffs of Salisbury Crags rising above the rooftops of Holyrood, with grey clouds above

  Bernt Rostad · CC BY 2.0 · colours and contrast edited