> When Gustave Eiffel built the tower that bears his name, he needed seven thousand tons of steel. It's famously made of wrought iron, not steel. I wonder if

> When Gustave Eiffel built the tower that bears his name, he needed seven thousand tons of steel. It's famously made of wrought iron, not steel. I wonder if that mistake comes from the book or the author of the review didn't want to have to explain the difference between the two.