The Eiffel Tower

It was only meant to stand for 20 years before being dismantled. Many Parisians hated it as an eyesore. Over eight thousand pieces of iron and two and a half million rivets, assembled by 300 workers. One died in the process. It was inaugurated 122 years ago, on the 31st of March, 1889.
See Also: http://en.wikipedia.org/wiki/Eiffel_Tower

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