Edinburgh’s OLD TOWN, although only about a mile long and 400 yards wide, represented the total extent of the twin burghs of Edinburgh and Canongate for the first 650 years of their existence, and its general appearance and character remain indubitably medieval. Containing the majority of the city’s most famous tourist sights, the Old Town is compact enough to explore in a single day, though a thorough visit requires a bit longer. No matter how pressed you are, make sure you spare time for at least a taste of the wonderfully varied scenery and breathtaking vantage points of Holyrood Park, an extensive tract of open countryside on the eastern edge of the Old Town that includes Arthur’s Seat, the peak of which rises so distinctively in the midst of the city.