It's the Filling Station in Stirling - though I imagine it was something before that. On my facebook Helen posted an explanation, I'll quote it here for you:
"In the 9th century the Danes were trying to invade Scotland, and Stirling; already invaded by English Northumbrians, aimed to protect the city by use of sentries. However, one fell asleep just as the Danes were furtively preparing to attack.... The besieging foe was at hand, and was about to take the city, when a wolf, alarmed at the noise and din of the advancing hordes, crept for safety to the crag on which the sleeping soldier lay. But still he found no safety. He growled in terror. It was his wild cry that saved the city. It awoke the sleeping sentinel, who, seeing the position of matters, raised the alarm. Yet he was not too late. The citizens arose, buckled on their armour, and drove the Danes from the district ; thus the wolf saved the city."
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Date: 2010-09-16 03:55 pm (UTC)"In the 9th century the Danes were trying to invade Scotland, and Stirling; already invaded by English Northumbrians, aimed to protect the city by use of sentries. However, one fell asleep just as the Danes were furtively preparing to attack.... The besieging foe was at hand, and was about to take the city, when a wolf, alarmed at the noise and din of the advancing hordes, crept for safety to the crag on which the sleeping soldier lay. But still he found no safety. He growled in terror. It was his wild cry that saved the city. It awoke the sleeping sentinel, who, seeing the position of matters, raised the alarm. Yet he was not too late. The citizens arose, buckled on their armour, and drove the Danes from the district ; thus the wolf saved the city."
Isn't it a great story?