Why was the eifel tower build?

Answer 1

Quoting directly from the Wikipedia article on the structure.. "...It was named after the engineer Alexandre Gustave Eiffel, whose company designed and built the tower. Erected in 1889 as the entrance arch to the 1889 World's Fair..."

Answer 2

The Eiffel tower was built between 1887 and 1889 as the entrance arch for the Exposition Universelle, a World's Fair marking the centennial celebration of the French Revolution.

Answer 3

an attraction