Built in the late 18th century during the reign of King George III, Princes Street was part of the new section of Edinburgh and was named for the King's sons after its original name – St Giles Street – was rejected.
Today, it is the main shopping street in Scotland’s capital city.
Take a look through our photo gallery to see just how much Princes Street has changed down the decades.
9. The Life Association of Scotland Ltd
The Life Association building echoed the finest architecture of the Renaissance-era; a true palazzo for Princes Street with its variety of elaborate window bays and cornices, beautifully-fashioned sculptures, and stunning supporting pillars styled in each of the three ancient orders Photo: Photo: TSPL
10. Princes Street 1955
These days it's a lot less busy, but Princes Street used to be a haven for shoppers. Here we see a packed Princes Street in 1955. Photo: Photo: Lost Edinburgh
11. Swinging Sixties
A photograph of Princes Street in the 60s show the fashion and cars of the period. Photo: Photo: TSPL
12. The Palace Hotel
The Palace Hotel fire started on the evening of June 9 1991 after youths managed to break in to the building which was lying empty at the time. Picture: Janet Dalgleish Photo: Photo: TSPL