Looking up the steel lattice funnel to the roof at King’s Cross Station Western Concourse

The semi circular roof light gives attractive shadows on the original ticket hall

The elegant fan shape of the steel lattice roof of the £547m upgrade of the railway terminus

2012 Steel lattice in front of the 1852 station booking hall.

The weight of the new roof is carried to the ground via the steel lattice acting as a single massive column because the original building could not hold the weight of the new roof.

King’s Cross Station Western Concourse is a spectacular addition to the otherwise undistinguished Kings Cross station in London, described amusingly by Hugh Pearman as “the ultimate lean-to”. The building is designed by architect John McAslan + Partners with engineering by Arup in 2012