The structure of the Eiffel Tower weighs 7,300 tons. Depending on the ambient warmth the top of the tower may shift away from the sun by up to 18 cm (7 in) due to thermal growth of the metal on the side facing the sun. The tower also sways 6-7 cm (2-3 in) in the wind.
The first and second levels are reachable by stairs and lifts. A ticket booth at the south tower base sells tickets to use the stairs which begin at that position. At the first platform the stairs continue up from the east tower and the third level summit is only reachable by lift. Once you are on the first or second platform the stairs are open for anyone to climb or descend apart from of whether you have purchased a lift ticket or stair ticket. The actual count of stairs includes 9 steps to the ticket booth at the base, 328 steps to the first level, 340 steps to the second level and 18 steps to the lift platform on the second level. When exiting the lift at the third level 15 more steps exist to ascend to the upper inspection platform. The step count is printed sporadically on the side of the stairs to give an suggestion of progress. The majority of the ascent allows for an unhindered view of the area directly lower than and around the tower except during brief stretches of the stairway that are enclosed.
Maintenance of the tower includes applying 50 to 60 tons of paint every seven years to protect it from rust. In order to maintain a uniform exterior to an observer on the ground, three separate tones of paint are used on the tower, with the darkest tone on the bottom, and the lightest at the top. On occurrence the colour of the paint is changed — the tower is currently painted a shade of brownish-grey. On the first floor there are interactive consoles hosting a ballot for the colour to use for a future session of painting. The co-architects of the Eiffel Tower are Emile Nouguier, Maurice Koechlin and Stephen Sauvestre.
The first and second levels are reachable by stairs and lifts. A ticket booth at the south tower base sells tickets to use the stairs which begin at that position. At the first platform the stairs continue up from the east tower and the third level summit is only reachable by lift. Once you are on the first or second platform the stairs are open for anyone to climb or descend apart from of whether you have purchased a lift ticket or stair ticket. The actual count of stairs includes 9 steps to the ticket booth at the base, 328 steps to the first level, 340 steps to the second level and 18 steps to the lift platform on the second level. When exiting the lift at the third level 15 more steps exist to ascend to the upper inspection platform. The step count is printed sporadically on the side of the stairs to give an suggestion of progress. The majority of the ascent allows for an unhindered view of the area directly lower than and around the tower except during brief stretches of the stairway that are enclosed.
Maintenance of the tower includes applying 50 to 60 tons of paint every seven years to protect it from rust. In order to maintain a uniform exterior to an observer on the ground, three separate tones of paint are used on the tower, with the darkest tone on the bottom, and the lightest at the top. On occurrence the colour of the paint is changed — the tower is currently painted a shade of brownish-grey. On the first floor there are interactive consoles hosting a ballot for the colour to use for a future session of painting. The co-architects of the Eiffel Tower are Emile Nouguier, Maurice Koechlin and Stephen Sauvestre.
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