history
Built for the 1889 World's Fair, the Eiffel Tower was only given a temporary permit and was meant to be dismantled — until its great height made it perfect as a radio antenna.
The Eiffel Tower was originally granted only a 20-year permit when it was built for the 1889 World's Fair in Paris, with the expectation that it would be dismantled once that period ended, since it was conceived primarily as a temporary showpiece and engineering demonstration rather than a permanent city landmark.
It was not meant to be permanent from the start, nor was its permit only five years, the specific, documented figure was 20 years, after which the tower survived demolition primarily due to a practical justification rather than aesthetic appeal alone.
The tower was ultimately saved because its unusual height made it an excellent platform for early radio antenna experiments, and its usefulness for radio transmission, including military communications, gave officials a compelling practical reason to let it stand well past its original 20-year deadline, eventually making it a permanent fixture of the Paris skyline.
history
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