Bridges are some of the most beautiful and useful products of math we encounter in our daily lives. This detailed text will teach readers exciting and age-appropriate facts about the engineering behind these structural wonders. Readers will see record-breaking masterpieces from across the globe, such as living bridges built into trees in India. Spectacular photographs, an easy-to-read map, and fun fact boxes will engage all readers. A concluding engineering activity is perfect for kinesthetic learners who love to work with their hands!