Though Mr. Eiffel is best known for his contributions to a tower in Paris that is named after him, he also engineered the
internal structure that holds up the Statue of Liberty.
Eiffel chose to use a flexible structure, so that changes in the temperature and strong winds from the ocean would not cause the statue to crack.
Because of Eiffel’s crafty design, the Statue of Liberty may sway as much as three inches on a windy day.
If the winds exceed 50 iles per hour, the torch may sway five inches.
Eiffel is also responsible for including two spiraling staircases on the interior of the statue to help visitors reach the observation point in the crown.