Eiffel Tower

Named after its designer, the engineer Gustave Eiffel, the Eiffel Tower is the tallest building in Paris and one of the famous structures in dunia.Lebih than 200,000,000 people have visited the tower since its construction in 1889, including 6,719,200 people in 2006, making the monument cost most often in dunia.Termasuk antenna height 24 meters (79 feet), this structure has a height 325 meters (1063 feet) since 2000, the same 81-story conventional building.

When the tower was completed in 1889, this structure became the tallest in the world - a title it retained until 1930 when the Chrysler Building in New York City (319 feet - 1047 feet) completed. The tower is now the fifth-tallest in France and the highest in Paris, with the second highest structure of the Tour Montparnasse (210 meters - 689 feet), although it would be surpassed by Tour AXA (225.11 m - 738.36 ft).

The metal structure of the Eiffel Tower weighs 7300 tons while the entire structure including non-metal components weighs 10,000 tons. Depending on temperature, away from the spire of the sun can be 18 centi-meter (7 inches) due to thermal expansion of metal on the side facing the sun. The tower also sways 6-7 centimeter (2-3 inches) in the wind. As a demonstration of the economy of the building, when 7300 tons of metal structure were melted down it would meet the 125 meters with a depth of 6 square centimeter (2:36 inches), which means the density of 7.8 tonnes of iron per cubic meter. The tower has a mass less than the mass of air in the cylinder with the same dimensions, 324 meters high and 88.3 radius. The weight of the tower is 10,100 tonnes compared to 10,265 tons of air.

The first and second levels are accessible by stairs and elevator. A ticket booth at the south tower to sell tickets to the stairs which begin at that location. On the first platform the stairs continue up from the east tower and the third level summit is only accessible by elevator. From the first or second platform the stairs open to all people who rise and fall depending on if they had bought tickets or tickets elevator stairs. Number 9 steps to the ticket counter at the bottom, 328 to the first level, 340 to the second level and 18 to the platform elevator at the second level. When exiting the elevator on the third level there are 15 steps to ascend to the upper observation platform. Number of steps printed periodically on the side of the stairs to give an indication of the ascent. Most of the ascent to the scene directly beneath and around the tower although short steps beebrapa closed.

Maintenance of the tower includes applying 50 to 60 tonnes of paint every seven years to protect it from rust. To maintain the appearance of the visitors below, three different colors used on the tower, with a dark color on the bottom and the lightest on top. Paint color changed; the tower is painted brownish-gray. On the first floor there are interactive consoles for the color to the next painting. Architect of the Eiffel Tower are Emile Nouguier, Maurice Koechlin and Stephen Sauvestre.