The Eiffel Tower is an iron lattice tower located in Paris, France. It was built as the entrance arch for the 1889 Exposition Universelle, a World's Fair held to celebrate the 100th anniversary of the French Revolution. The tower was designed by Gustave Eiffel and stands over 986 feet tall, making it the tallest structure in Paris at the time of its construction.

The Eiffel Tower quickly became a popular tourist attraction, and today it is one of the most recognizable landmarks in the world. It has become an iconic symbol of France and Paris, and is visited by millions of tourists each year. The tower offers breathtaking views of the city and its surroundings, and visitors can ascend to its summit via stairs or elevators.

In addition to its iconic stature, the Eiffel Tower has also been the site of numerous technological innovations and scientific experiments. During World War I, it was used as a radio communication tower, and during World War II it was used as a military observation post. Today, the Eiffel Tower is lit up at night with a colorful light show, and is a popular spot for events and special occasions. It has been designated as a UNESCO World Heritage Site and is one of the most visited tourist attractions in the world.