1. 4 -- the number of base pillars, each of which is in line with one of the coordinates on a compass
2. 1 million (or 5 million francs) -- number of dollars to build the tower, 80% of which Gustave Eiffel, its designer, offset; M. Eiffel was reimbursed most of the money through ticket sales in the first six months
3. 18,000 -- number of parts used to assemble the tower
4. 132 -- number of workers who built the structure
5. 2.5 million -- number of rivets in the metal
6. 1023 -- current height in feet of the tower (originally it stood only 986 feet)
7. 10,000 -- weight in tonnes of the tower
8. 12,000 -- weight in gallons of paint on metal, which is repainted every 7 years
9. 60 -- number of degrees of the angle that the elevator follows up the tower
10. 336 -- number of spotlights that light up the tower at night; gas lighting was used until 1909
11. 1710 -- number of steps leading up to the summit
12. 126 -- number of antennae at the top of the tower; zeppelins warning were received by the tower during World War I; Nazi messages were sent out from the tower during World War II
Note: For more information on the Eiffel Tower, read:
1. A Line from Linda, "The Gigantic Black Smokestack" dated March 30, 2012.
2. Eiffel's Tower, Jill Jonnes.