Building feats: The Eiffel Tower The Eiffel Tower is the monument that is the emblem of the city of Paris. It is a wrought iron tower founded in 1889 by Gustave Eiffel and his colleagues. The high tower of 325 meters installed on a square of 125 meters wide, has 3 floors leading to a platform that some call "fourth floor". It is located in central Paris, near the Seine and more specifically after the Champs de Mars. The Eiffel Tower is the pride of Parisians since its construction. For years, the Eiffel Tower served as a weather and experimental laboratory. Today, it is used for transmitter antennas to 116 radio and television. But the Eiffel Tower is also one of the biggest tourist spot for France, welcoming thousands of visitors each year. Since its construction in 1889, the Eiffel Tower has recorded more than 250 million visitors. The construction of the Eiffel Tower took exactly two years, two months and five days. Its opening was held in March 31, 1889, just before the opening of the famous exhibition. It was also built in order to greet the centenary of the French Revolution. Gustave Eiffel began studies of its construction in 1884. The tower is 300 meters at its finish. The installation of antennas al'a Record High of 325 meters. For forty years, the Eiffel Tower was the tallest monument in the world. The construction of the Chrysler Building in New York in 1930 it lost its place as "tallest structure in the world." The Eiffel Tower was built after a sketch made June 6, 1884, by Maurice Koechlin. The sketch was a drawing of pillars connected to the curved top and maintained by platforms every 50 feet. During construction, much of the work was done in the factories. Sections were assembled ahead with temporary bolts and transported as such. It took hard work of 50 engineers for all drawings and details of parts and assemblies of the Eiffel Tower. Each room had a sketch descriptive. One can imagine the volume of work, when we know that the Eiffel Tower has 18,038 metal and 2,500,000 rivets! The whole tower has only a thrust of 4.5 kg / cm ² with the presence of huge concrete pads that support the four pillars. This charge is equal to the load carried by a man sitting on a chair. The tower weighs 10,000 tons in all. Upon its opening, the tower was illuminated with neon lights, fireworks, gas and electric light. It involved 250,000 bulbs of different colors. Later, two light beams which are in turn the value in the sweep for 80 km. In 1944, the tower has escaped from the fire premeditated by German troops who wanted it as a basis for transmitting communications. The changeover to the year 2000 marked the illumination of the tower. In addition to its usual lights, the Eiffel Tower shined 20,000 lights, consisting of bayonet bulbs that lit up every new time. 6. The Eiffel Tower has its own stories like that of famous scammer named Victor Lustig who have "sold" the tower in 1925. It would be impersonating a government official and had made bids to scrap dealers who wanted to buy the tower. They have invited to the Hotel Crillon in Paris and would have spoken like a real deputy. The story of the scam Victor Lustig was told in the book entitled "The man who sold the Eiffel Tower" by James F. Johnson and Floyd Miller 1961.Eiffel Tower has repeatedly been the favorite subject of literary authors like Roland Barthes, Paul Leon Fargue or Guillaume Apollinaire. It has inspired hundreds of plays and films. But it is in the tourism field that the tower is the most successful. The Eiffel Tower has 1665 stairs from the ground up to the summit in the eastern pillar. The base of the tower spans 125 square meters wide. Each of the 4 pillars rests on a cast steel assembled at the bridge by a huge bolt anchor of 7.80 meters. Each pillar is geared towards the 4 cardinal points. A concrete pad 25 meters x 25 meters by 4 meters in height is used to support the base of each pillar. Bows are strung between each of the pillars, they provide rigidity to the base of the tower. The first floor is 57 meters above the ground and can withstand the presence of 3,000 people at once. It also includes a spiral staircase, and an observatory used to monitor the oscillations of the tower. The Eiffel Tower is open to the public every day of the year. On the first floor, a circular gallery provides a view of the city of Paris. In the gallery, tables observation fitted with long views are for those who want a closer look at the other monuments of the city. One can also see the list of names of 72 eminent scientists of the eighteenth and nineteenth centuries. Access to the third floor is by an elevator. The stairs are closed to the public after the second floor. On the third floor space is smaller. After a few steps, the visitor arrives on a platform outside. Tourists have mistakenly called "fourth floor". The Eiffel Tower remains the most emblematic monument of France. It was for 40 years, the tallest building in the world. The Eiffel Tower receives 6 million visitors each year since 1998. This is the site that hosts the largest crowd in Ile-de-France. Its architecture and longevity are its biggest tourist attractions.