The coming of the railways transformed London. This picture shows construction workers or "navvies" on the Metropolitan District Railway at Praed Street around 1867. The roof of the new Paddington Underground station can be seen in the distance.
World War 2: British fighter aircraft are being produced in increasing numbers. Here are Spitfires in production, in a factory where women play an important part, and are employed in nearly all branches of construction. April 3, 1941.