Scientific experiments were conducted in the fields of astronomy and physiology but what would really save the Tower in the end was its use as a radio antenna tower, first for military communications and then for permanent, radiotelegraphy communications; in fact, the Tower served many a purpose during the First World ...

The Eiffel Tower was originally intended to be a temporary structure, built for the 1889 World's Fair with a permit to stand for only 20 years. It was slated for demolition in 1909, but Gustave Eiffel saved it by demonstrating its scientific and strategic value as a radio antenna. He personally funded experiments in wireless telegraphy from the tower's summit, which proved vital for the French military. During World War I, the tower's powerful transmitters intercepted enemy radio signals and helped the French coordinate the "Miracle of the Marne." Its height made it the most powerful radio station in Europe, and later, it became essential for the first public radio and television broadcasts. What was once dismissed as an "iron eyesore" became an indispensable piece of national infrastructure, ensuring its permanence as the iconic symbol of Paris and a global center for telecommunications.