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The Eiffel Tower in Paris, France, was constructed by Alexander-Gustave Eiffel in commemoration of the French Revolution, and completed in 1889 at a cost of $1.5 million dollars. The design beat out 700 others who were competing for the opportunity, and the structure was completed in just 21 months. At 986 feet, it was the tallest building in the known world after being unveiled at the Paris World’s Fair. This open-latticed, brown wrought iron structure has since become one of the world’s major tourist attractions, even though dozens of buildings have now surpassed it in height.