Dundee City, formerly the County of Dundee, is a local government area in Scotland, and the United Kingdom's 51st most populous built-up area, with an official population estimate of 156,950 as of 2015. It covers most of the ancient county of Angus, including the towns of Arbroath, Brechin and Forfar and most of what was once the local government district of Tayside North (with the exception of Fife) and small parts of Perthshire to the south-east and Aberdeenshire to the north-east. The city of Dundee, itself, is the fourth largest city in Scotland after Glasgow, Edinburgh and Aberdeen, located on the north east coast of the Firth of Tay. The city has become prominent as an international trading port, with recent expansion of the harbour bringing renewed prosperity to Dundee, alongside thriving local tourism to attractions such as Dundee Law, Scone Palace and Broughty Castle.