Original blueprints of the Eiffel Tower

At the Eiffel Tower's official web site, you can check out scans of the original blueprints created by Gustave Eiffel in preparation for the 1889 World's Fair. The famous tower in Paris was the source of much controversy (many thought its skeletal design ruined the classical cityscape) and remained the tallest structure in the world until the Chrysler Building in 1930.

[Via: Gizmodo, Via: Boingboing]