This book is a compilation of fascinating facts about past times and ways people changed or created new machines that changed the lives of everyone. Included are such topics as how the Roman Colosseum was built on a lake, how the Eiffel tower was built, and how Ben Franklin used a kite to test the nature of lightening. A great book for loading up on trivia for that next family reunion. ( )

Summary: The story of human ingenuity through the ages.