Paris’s most famous landmark wasn’t always beloved. When Gustave Eiffel built the tower for the 1889 World’s Fair, Parisians complained it was an “eyesore.” The plan? Tear it down after 20 years.
But Eiffel had a clever trick — he installed a radio antenna at the top. Suddenly, the tower became vital for military communications and scientific experiments. That “temporary” tower went on to become one of the most iconic structures in the world. Merci, Monsieur Eiffel!