The Royal Mile is a historic street in Edinburgh that leads from Edinburgh Castle to Holyrood Palace. It is called the Royal Mile because it was once the main route by which kings and queens traveled between their royal residences. The street is lined with historic buildings, including St. Giles' Cathedral and the Palace of Holyroodhouse. The Royal Mile has played an important role in Scottish history: it has been the scene of many royal celebrations and events, as well as many historic rebellions and uprisings. Today it is one of the most important tourist attractions of Edinburgh.