One O' Clock Gun. Fired every day, except Sundays at one o' clock. The first gun was fired in 1861 to provide an audible time signal for ships in the Port of Leith.

, Edinburgh, United Kingdom

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Edinburgh Castle #04

Portcullis Gate 1574-77 Built after the long siege of 1571-3 as the main gateway into the castle, it stands on the site of the medieval constable's tower. The top storey was added in 1887.

, Edinburgh, United Kingdom

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Edinburgh Castle #11

Saint Margaret's Chapel. 12th century. The oldest building in the castle built by King David I (1124-53) and dedicated to his mother who died here in 1093. She was created a saint in 1250

Edinburgh Castle, Edinburgh, United Kingdom

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