Parisian landmark built for the Centennial Exposition of 1889. Conceived by the bridge engineer Gustave Eiffel (1832–1923), the 984-ft (300-m) tower of open-lattice wrought iron was a technological masterpiece. Making use of advanced knowledge of the behaviour of metal arch and truss forms under loading, the structure presaged a revolution in civil engineering and architectural design. The tower was the world's tallest building until the Chrysler Building in New York City was topped off in 1929.
Eiffel Tower, Paris.—© Corbis
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