 In the early nineteenth century, the inconvenient access to Edinburgh by the great London road had long a subject of general regret.To enter the city from the south, the route ran through narrow and inconvenient streets, an approach that was considered unsuited to the general elegance of the place.In 1814, however, a magnificent entrance was commenced from Calton Hill to Princes Street over a deep ravine called Low Calton that was then occupied by old and ill-built streets.