It is a openwork structure in wrought-iron trellis. Its overall height is increased several times due to its top mounted antennas:
1889 - 312.27 meters (height of the flag mounted on top)
1991 - 317.96 meters (height with antenna attached)
1994 - 318.70 meters (height with antenna attached)
2000 - 324.00 meters (height with antenna attached) - about 81 floors in a typical building
Its height varies by 18 cm depending on temperature . Under the influence of wind on the tower sways 6-7 cm. The entire structure of the tower consists of 18 038 metal parts and about 2.5 million rivets, its total mass, together with concrete pillars is about 10 000 tonnes. Emphasis on the base of the tower is 4.5 tons / sq.
The design is supported on four bases of the trapezoid side of 25 m each. At heights of 57 m, 115 I 275 m are scenic terraces. It occupies an area of side 125 m. At the top of the tower by 1665 degrees.
From 1980-1985, the renovation has been carried out, resulting in the lost weight 1 343 tonnes. Also, when mounted on the tower of the new lighting consisting of 352 lights, each with 1000 W, illuminating the tower at night. Lighting mounted on the tower itself can change its appearance after dark. This is done during the holidays and New Year. The tower is often decorated with small lights or illuminated in the French national colors. Every seven years to prevent corrosion, the tower is painted, and for this purpose is used 50-60 tons of paint.
The Eiffel Tower remained the highest status of the buildings of the world for 40 years until 1929, when New York built the Chrysler Building.
The first and second levels are accessible by stairs and elevators. The third level is accessible only by elevator.