Prehistoric art in Scotland Firth. The Romans eventually withdrew to a line in what is now northern England, building the fortification known as Hadrian's Wall from coast to coast. Around 141 CE they undertook a reoccupation of southern Scotland, moving up to construct a new "limes" between the Firth of Forth and the Firth of Clyde, where they built the fortification known as the Antonine Wall. The wall was overrun and abandoned soon after 160 and the Romans withdrew back to the line of Hadrian's Wall, until Roman authority collapsed in the early fifth century. The Antonine Wall and its associated forts left a
Architecture of Scotland classical models. Edinburgh's New Town was the focus of this classical building boom in Scotland. From the mid-eighteenth century it was laid out according to a plan of rectangular blocks with open squares, drawn up by James Craig and built in strong Craigleith sandstone which could be precisely cut by masons. Most residences were built as tenement flats, where, in contrast to contemporary building in England where buildings were divided vertically into different houses, they were divided horizontally, with different occupants sharing a common staircase. The smallest might have only one room, the largest several bedrooms and drawing rooms. This