We travelled along Horse Guards Road to return to Whitehall. On the right, there is St James Park. On the left, to the east, there is the headquarters of the Horse Guards. The Guard is a ceremonial unit now, but nonetheless this is a building with a great history.
The original building was constructed in 1663 on the orders of King Charles II. (His father was executed on the street in front of the current building, on Whitehall. Obviously this building was not there at the time.)
It was reconstructed in 1750 during the reign of George II.
The office of the commander of the army was here for a century (more or less), and now there is also a museum here.
In the distance you can see the London Eye, a large Ferris wheel which gives panoramic views over London.
Given that this looks like a very Edwardian era barracks and parade ground, a sepia tone seems apt, neh? It seemed the sort of thing that you might receive a postcard of sometime around 1910.