Eiffel Tower Was Inaugurated on 31 March 1889

The Eiffel Tower is a 19th century iron lattice tower located on the Champ de Mars in Paris that has become both a global icon of France and one of the most recognizable structures in the world. The Eiffel Tower, which is the tallest building in Paris, is the single most visited paid monument in the world; millions of people ascend it every year. Named after its designer, engineer Gustave Eiffel, the tower was built as the entrance arch for the 1889 World's Fair.

- Wikipedia

Science Fair Project Information
Title: The Shape And Strength Of Towers (in English & French)
Subject: Engineering
Grade level: Middle School - Grades 7-9
Academic Level: Ordinary
Project Type: Experimental
Cost: Low
Awards: 2nd place, Canada Wide Virtual Science Fair (2003)
Affiliation: Canada Wide Virtual Science Fair (VSF)
Year: 2003
Description: Straws are used to build different tower shapes like square and octagone. Weights, in increments, were placed on top the constructions till they collapse.
Link: http://www.odec.ca/projects/2003/ngoke3k2/public_html/