I took the picture during my lunch break when I had a walk in the sun from the hotel where the two day course I was on was being held down to the river.
The memorial commemorates the men and women of the Merchant Navy and Fishing Fleets who died in both World Wars and who have no known grave, it stands on the South side of the garden of Trinity Square close to the Tower of London.
The building photographed is the memorial to those lost in the First World War and was designed by Sir Edwin Luytens and unveiled by Queen Mary on 12 December 1928.
In total almost 12,000 First World War casualties are remembered.