Eiffel Tower, the icon of Paris and the most widely visited paid monuments in the world was planned to be demolished in 20 years when it was built in 1889. When Eiffel Tower was built, people of Paris thought it was an eyesore and the City of Paris gave a permit for the tower to remain only for 20 years. But because of the popularity and the usage of tower in radio communications the tower was allowed to remain even after the expiry of permit. Eiffel Tower is painted every 7 years to prevent it from rusting since it was originally designed as a temporary structure. It’s funny, Eiffel Tower that was once considered to have no structure is a now considered as a structural masterpiece.
If you are planning to take a trip to Paris and worried if the tower is in good shape — don’t worry. Experts claim that they have applied some of the most demanding stress tests to the tower and the tower is in an excellent shape.
Source: Eiffel Tower Facts