The Eiffel Tower is an iron lattice tower located on the Champ de Mars Area of the Seine river in Paris, France. It was named after the engineer Gustave Eiffel, whose company designed and built the tower. Erected in 1889 The tower was built to be used as the symbol of the world's fairs in 1889. , Since it has become a symbol of Paris. The tower is the tallest structure in Paris and the most-visited paid monument in the world. The tower received its 250 millionth visitor in 2010.