In which city did engineer Gustav Eiffel construct his iron and steel tower, the world's tallest structure when it was built in 1889?
a. Paris
b. New York City
c. Berlin
d. London
It was in the city of "Paris" that engineer Gustav Eiffel constructed his iron and steel tower, the world's tallest structure when it was built in 1889. It was initially met with a great deal of skepticism and negativity.