The Eiffel Tower was built in Paris, France for the 1889 World's Fair commemorating the French Revolution. At 300 meters tall, it was the world's tallest structure until 1930 and required over 2 years and 300 workers to construct using over 7,000 tons of iron. Named after its designer, Alexandre Gustave Eiffel, over 70 million people visit the iconic landmark each year, though its height also attracts some depressed individuals.