Edinburgh Castle Tower

Anyone who travels to Edinburgh, Scotland will find Edinburgh castle a tower of seemingly insurmountable strength. But the truth is that the castle was once actually captured. The fortress had an obvious weak spot which defenders guarded&md;but because another spot was apparently protected by its steepness and impregnability, no sentries were posted there. At an opportune time, an attacking army sent a small band up that unguarded slope and surprised the garrison into surrender. Where the castle was strong, there it was weak.