No aspect of infrastructure is quite as diverse as bridges. They may be simple or complex, ancient or modern, beautiful or plain. One trait that bridges do share is that they help people get where they're going, making them essential to a society on the move. In this informative text, readers delve into the world of bridges, their history, the various types, and the people who build and maintain them. Full-color photographs, fascinating stories, and fun facts add interest as readers get to know more about these feats of engineering and their role, past, present, and future, in our world.