Mordicai Gerstein's The Man Who Walked Between the Towers is another Caldecott Award winner. This picture book is the true story of Philippe Petit, a wire walker that walked between the unfinished World Trade Center Towers in 1974.
The story is facinating and the illustrations compelling (many are taken from actual photographs of the event. This book is a great way to introduce history and historical events to kids in a very accessible and entertaining way.
The end of the book also mentions the towers being gone now, though it does not say the reason. We used this book to introduce September 11 to our kids when they asked about why the towers were gone.
After enjoying this book so much, I wanted to learn more about Philippe so I read his book To Reach the Clouds