Premise: Its construction for the World's Fair of 1889 was an astounding engineering achievement ' 18,000 pieces joined together by 2,500,000 rivets, soaring 300 m (984 ft) into the air but standing on a base that is only 130 m (1,400 ft) square.

Hypothesis: Outside of painting it, minimal maintenance has been required on the tower.
Relation: neutral