The Eiffel Tower is made of iron and weighs around 10,000 tonnes.
300 workers, 18,038 pieces of wrought iron and 2.5 million rivets were needed to build the Eiffel Tower.
The Eiffel Tower was built for the 1889 Paris Exposition and was not intended to be permanent.
It is named after Gustave Eiffel, whose company was in charge of the project.
If the Eiffel Tower was built today, it would cost about US$31 million.
The Eiffel Tower was going to be demolished in 1909, but was saved because it was repurposed as a giant radio antenna.
The Eiffel Tower is the most visited paid monument in the world with about seven million people annually.
There are 20,000 light bulbs on the Eiffel Tower.
1,665 steps are needed to climb all the way to the top of the Eiffel Tower.
The height of the Eiffel Tower varies by 15 centimeters (5.9 inches) due to temperature changes.
Around 50 tonnes of paint are added to the Eiffel Tower every 7 years to protect it from rust.
Inventor Franz Reichelt died by jumping from the Eiffel Tower while testing a parachute of his own design.
There are over 30 replicas of the Eiffel Tower around the world.
Con artist Victor Lustig “sold” the Eiffel Tower to a scrap metal dealer.