The Eiffel Tower (in French: Tour Eiffel) is a 19th century iron lattice tower located at the Champ de Mars in Paris, which has become a world icon of France. The tower, which is the tallest building in the city, is the most visited paid monument in the world, with millions of people attending it annually. Named after its designer, the engineer Gustave Eiffel, was built as the entrance arch of the Universal Exhibition of 1889.
It is 324 meters high and is about 15 centimeters higher in the summer, due to the thermal expansion of the iron. It was the highest structure in the world since its completion until 1930, when it lost its position to the Chrysler Building in New York, United States. Not including transmission antennas, it is the second highest structure in the country, behind only the Millau Viaduct, completed in 2004. The tower has three levels for visitors. Tickets can be purchased on the stairs or elevators of the first and second level. The walk to the first level is over 300 steps. The third and highest level is only accessible by elevator. From the first floor you can see the whole town, having the floor toilets and several shops, and the second level has a restaurant.
The tower has become the most prominent symbol of Paris and France, being part of film scenes that are happening in the city. Its iconic status is so determined that it still serves as a symbol for the whole country, such as when the tower was used as the logo of the French bid to host the 1992 Summer Olympics.