Construction and Manufacturing of the Eiffel Tower

The Eiffel Tower is more than an ugly metal tower in the heart of Paris. It has ugly elevators and viewing platforms as well! What is truly impressive about Gustave Eiffel's (stolen) dream is the timeline for constructing the tallest structure in the world, at that time. How does something like that stay on track?! Even more interesting is the hate that it received from civilians, and that engineering and science is the only thing that saved it from being torn down many decades ago.