<human>:  What is the history of the Eiffel Tower?
<bot>: The Eiffel Tower is an iconic structure in Paris, France. It was constructed by engineer Gustave Eiffel between 1887 and 1889. It stands at a height of 324 meters, making it the tallest building in Paris at the time of its completion. The tower was initially built as the entrance arch for the Exposition Universelle, a world's fair marking the centennial anniversary of the French Revolution. The Eiffel Tower has become a symbol of Paris and was the world's first steel-structured tall building, a feat that has not been replicated until the late 20th century. It has also served as a radio tower, a meteorological station, and an attraction for tourists. Today, it stands as one of the most iconic landmarks in the world.