Bookended by Edinburgh Castle and Holyrood Palace, the Royal Mile (it's actually slightly longer than a mile) is the grand center of Edinburgh's Old Town. The Royal Mile is dominated by granite, giving it a dark, Gothic feel, and lined with majestic buildings - banks, churches, courthouses.
It was first modeled in the 12th century, when it was called Via Regis (the Way of the King). It’s not many thoroughfares that can claim to follow a path carved out by a glacier!
Even though these days it's Tourist Central - it's jam-packed during the Edinburgh Festival, and year-round is heavy on the tartan'n' shortbread kitsch - it still somehow manages to maintain its feeling of splendor.
The Royal Mile is actually a series of streets, running from Castle Esplanade in the west through Castlehill, Lawnmarket (which used to be the old open-air linen market), High Street and Canongate. It finishes at Abbey Strand, which leads into Holyrood Palace.