Years Built: 1887-1889 for 1889 Universal Exhibition and Centennial of the French Revolution
Engineers : Maurice Koechlin and Emile Nouguier
Architect : Stephen Sauvestre
Contractor : Gustave Eiffel
Occasion for Construction: 1889 Universal Exhibition
Construction Period: 23 January 1887 to March 1889 (2years,2months,5days)
Tower inaugurated: March 31, 1889
Number of Steel Workers: 300
Number of Workers Killed during Construction: 1
Rivets: 2,500,000
Steel pieces: 18,038
Height: 300.51 metres (+/- 15 cm depending on temperature)
1st level - 57 metres
2nd level - 115 metres
3rd level - 276 metres
Height including television antenna: 320.755 metres
Weight: 7,000 tons (1,000 tons removed during 1990's renovation)
Base: 412 feet square, although also noted as about 2.5 acres
Foundation Pressure: 58.26 to 64 psi (9000 psf)
Paint: 50 tons every 7 years
Paint Color: Dark Brown
Steps to Top: 1789 (Birnbaum), 1671 (Joseph Harriss), 1652 (others),
Steps walkable by visitors (Ground to 2nd floor): 704
Year lighting added contributing to Paris' reputation as "City of Lights": 1986
Lighting : 352 projectors of 1000 watts
Day the German flag was hoisted on the Eiffel Tower as German army entered and occupied Paris: June 14, 1940
Number of Visitors, 1987: 4,000,000
Number of visitors, 1996 : 5,530,279
Numbers of visitors from the beginning to 1996: 167,664,439
First Radio Transmission: 1918
First TV transmission: 1957
Maximum sway in wind: 12 cm
Tallest Structure in the World: 1889-1930 (until Chrysler Building)
2nd Tallest Structure in the World: 1930-1932 (Until Empire State Bldg)
Parachute Descent: 1984 by two Englishmen
Bicycle Descent: 1923 by a journalist
Mountaneering Ascent: 1954
Visibility on a clear day: 67 kilometers (42 miles)