89) The Eiffel Tower

The Eiffel Tower is one of the seven wonders of the world and is one of the most famous landmarks in Europe and the world, is located in Paris, in the north-west of Champ de Mars.It is very close to the Seine and is considered one of the seven wonders of the world. It is the most famous tourist attraction in France.It is visited by millions of tourists annually. It is a tourist destination that attracts visitors from all over the world.  It has remained since its construction in the year of one thousand eight hundred and eighty-nine, and until the year one thousand nine hundred and thirty the tallest building in the world, that is, for forty-one years.It took two years,  It was opened on March 31, 1991, and is mainly used as an observation tower, radio and television tower.

The body of the tower consists of iron, consisting of eighteen thousand and eighty-eight iron pieces, installed using two and a half million nails, and weighs the tower about ten tons.The height of the antenna in the Eiffel Tower is three hundred and twenty-four meters, and the height of the surface is three hundred and sixty-five centimeters, while the height of the last floor is two hundred and seventy-three meters.It consists of three floors, seven electric lifts, two restaurants to provide meals for visitors, and the elevator takes up to up to the top about eight minutes.Designed by Stephen Sophistry, architect Maurice Coutcheln, and Emile Nogueire, it was sponsored by architect Gustav Eiffel, named after the tower.It was used in the past to conduct scientific experiments by many scientists and experts, such as weather experiments, free fall of objects, and atmospheric monitoring.