Most City offices are in buildings tightly packed on awkwardly shaped sites and even modern builds make use of mirrors to increase the daylight on lower floors.
Holden, C.H. and Holford, W.F., The City of London: a record of Destruction and Survival, p39
The book, published in 1950, documents the extent of World War II damage to The City of London and proposals for its rebuilding. Unfortunately, the country was essentially bankrupted by the war and therefore the costs to execute were out of reach, which even the book admitted.
