My least favourite building is the United Nations Secretariat in New York – a stain on Le Corbusier's otherwise majestic CV. It is shaped like a box of breakfast cereal, and although it may have looked innovative in 1950, the style does not date well – unlike the glorious Art Deco skyscrapers standing nearby. It must be tragic to have one of the offices in the windowless north or south ends, where some of the best views in the world are forever blocked by slabs of marble. New Yorkers and UN bureaucrats alike must thank heaven its planned twin never got off Le Corbusier's drawing board.
Ross King is author of Brunelleschi's Dome and Michelangelo and the Pope's Ceiling, both published by Pimlico.