The railway tunnel, or Chunnel, that whisks millions of passengers and vehicles between England and France is an engineering miracle. Built deep under the English Channel with massive tunnel boring machines the Chunnel are the longest undersea tunnel in the world and one of history’s most fascinating construction projects. Correlates with STEM instruction. Includes glossary, websites, and bibliography for further reading. New additions to the award-winning series take a look at some of the most remarkable engineering accomplishments of our time. Learn about the idea’s early stages of development, problems encountered along the way, and how each great idea has influenced our lives. Perfect for STEM connections.