The Edinburgh castle on the rock since at least the reign of David I in the 12th century, and the site continued to be a royal residence until 1633. From the 15th century the castle's residential role declined, and by the 17th century it was principally used as military barracks with a large garrison. Its importance as a part of Scotland's national heritage was recognised increasingly from the early 19th century onwards, and various restoration programmes have been carried out over the past century and a half.

The Royal Mile is a succession of streets forming the main thoroughfare of the Old Town of the city of Edinburgh in Scotland. The term was first used descriptively in W M Gilbert's Edinburgh in the Nineteenth Century (1901), "...with its Castle and Palace and the royal mile between", and was further popularised as the title of a guidebook, published in 1920. We will travel the length of the royal mile stopping to take photos.

The "Royal Mile" is a name coined in the early 20th century for the high street of the Old Town which runs on a downwards slope from Edinburgh Castle to Holyrood Palace and the ruined Holyrood Abbey. Narrow closes (alleyways), often no more than a few feet wide, lead steeply downhill to both north and south of the main spine which runs west to east.