Is the Eiffel Tower a strong structure?

The construction of a metal structure as tall as the Eiffel Tower required substantial work to ensure it had foundations able to withstand anything. More than 130 years later, the innovations of Gustave Eiffel's company have proven their worth!



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The iron used to build the Eiffel Tower went through a refining process called puddling which eliminated the excess carbon when the ore was melted. Following this process, you obtain almost pure iron, which was, according to Gustave Eiffel at that time, the best and most robust of materials.

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Over time, the Eiffel Tower has withstood plenty of adverse weather conditions, including floods - such as the major one in 1910 - and storms, and not once have its structural integrity and foundations been cause for concern!

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Over time, the Eiffel Tower has withstood plenty of adverse weather conditions, including floods - such as the major one in 1910 - and storms, and not once have its structural integrity and foundations been cause for concern!

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Hidden beneath the Eiffel Tower are its foundations, of course, which are firmly anchored 22.3 feet underground, but also the basements housing the technical equipment for each pillar, such as the elevator mechanisms, and offices.

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Eiffel won an open competition to design the Eiffel Tower, which was to be the crowning glory during the Paris World Fair of 1889.
  • It Took 22 Months to Complete.
  • The Eiffel Tower Is Made of Iron.
  • The Eiffel Tower Has Three Floors.
  • The Eiffel Tower Has to be Repainted Every 7 Years.


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According to our model, the tower could withstand peak ground accelerations >100% larger than the values prescribed by current seismic hazard estimates.

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However, the lights on the Eiffel Tower were installed in 1985, by Pierre Bideau, meaning that any photo or video that shows the monument at a time when the lights are visible (ie, at night) is a violation of copyright law.

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What Are the 11 Most Interesting Facts About the Eiffel Tower?
  • It Was Designed by Gustave Eiffel. ...
  • It Took 22 Months to Complete. ...
  • The Eiffel Tower Is Made of Iron. ...
  • The Eiffel Tower Has Three Floors. ...
  • It's as heavy as an Entire Freight Train. ...
  • The Eiffel Tower Has to be Repainted Every 7 Years.


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It is made of lattice-shaped wrought iron with 20,000 lights. The Eiffel Tower was built for $1.5M in 1889. If we inflation adjust this original cost using CPI, we get $44M. According to a 2012 study by the Chamber of Commerce of Monza and Brianza in northern Italy, it is worth $510 billion.

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Can you walk beneath the Eiffel Tower without paying for a ticket? Yes. The Eiffel Tower gardens and esplanade are fully accessible without a ticket, i.e. for free.

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Winds can cause the top of the Tower to sway, side-to-side, by up to 7 centimeters (2.8 inches). 5) Roughly 250 million people have visited the tower since it opened.

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If you want to go to the top, stairway + lift tickets allow you to climb the Tower on foot up to the 2nd floor, and then take the lift up to the top, for a sporty and heady experience. These tickets are only sold on-site.

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The Eiffel Tower can only be painted by hand The Eiffel Tower is stripped of its color and repainted every seven years by 50 painters. To date, the tower has been repainted 19 times. On average, at least 60 tons of paint are applied to the whole structure to prevent the iron exteriors from rusting.

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Constructed using puddle iron, the Tower is protected from oxidation by several coats of paint to ensure that it lives forever.

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