Eiffel Tower
The Eiffel Tower cost 7,799,401.31 French gold francs to build in 1889, an amount equal to $1,495,139.89 at that time. Today, its cost would equal to $36,784,020.11. It took 2 years, 2 months and 5 days to build it. The tower is  tall, but this height does not include the  aerial (antenna) on the top; the total height of the structure is . It has a square base that is  long on each side. The second story platform is  off , and the surface to be painted is . Since it has been built it has been repainted 18 times, each of these 18 paint jobs there were only 25 painters hired to do the job. Three separate colors of paint are used on the structure in order to enhance the impression of height, with the lightest at the top.