The Eiffel Tower (French La tour Eiffel), completes its 126 years on Tuesday.
Back in March 31, 1889, the iron lattice tower was opened on the Champ de Mars in Paris, France.
It was named after the engineer Gustave Eiffel, whose company designed and built the tower.
Erected as the entrance arch to the 1889 World's Fair, it is both a global cultural icon of France and one of the most recognizable structures in the world.
The tower is the tallest structure in Paris and the most-visited paid monument in the world.
Work on the foundations started on 28 January 1887, taking two years, two months, and five days to complete its construction, the Eiffel Tower was initially only supposed to stand for 20 years.
Gustave Eiffel, the chief architect and civil engineer of the metallic edifice, had on that day climbed its 1,710 steps to place the French flag on top. Gustave also designed the Statue of Liberty.
The giant metallic edifice, located on the Champ de Mars in Paris was built as the main exhibit at the 1889 Exposition Universelle (World's Fair), held to mark the centennial of the French Revolution in 1789.
The 324-metre-high (1,062-foot) Eiffel Tower draws around seven million visitors every year and is the most visited monument in the word.
Construction on the tower began on 26 January, 1887, and took two years, two months, and five days to complete.
The tower was initially only supposed to stand for 20 years.
Google is celebrating the day with a doodle that shows workers giving final touches to the French marvel.
