The Eiffel tower is one of the most easily recognizable architectural structures in the world. The symbol of Paris was erected on the Champs de Mars in 1889 by the company run by Gustave Eiffel. The unbelievably light metal structure offers striking views of Paris while being an amazing technical achievement of its own. It has been attracting millions of visitors every year - in fact, the Eiffel tower is the most-visited monument in the world! It is 324 meters tall, the highest tower in Paris.