All aboard! From the fastest to the longest, the oldest to the newest, through tunnels, across bridges and up mountainsides, take a fascinating ride through the world of trains in this brilliant new book from illustrator James Gulliver Hancock.In this follow-up to How Cities Work and How Airports Work, young readers travel through history and around the world to find out everything they ever wanted to know about trains. Unfold pages and lift flaps to reveal bustling stations, old steam locomotives fueled with coal, and high-speed trains zooming across Japan at almost 400 miles per hour!And that's not all. See how trains reach the top of mountains, transport people under cities, and work beneath the sea.