To nick a line from our own Kevin Bridges, Edinburgh and Glasgow are very different cities: when a gun goes off in Edinburgh, it's one o'clock.
But while that joke still has us all in stitches, there actually was a brief period when both cities observed the practice of firing a gun at 1pm every day.
Fired from the ramparts of Edinburgh Castle, the boom of the famous One o'Clock Gun has been startling the bejesus out of unwitting tourists and absent-minded locals in Scotland's capital almost every single day, save for Sundays, Good Friday and Christmas Day, for more than 160 years.
