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 is the longest undersea tunnel in the world - ;and one of history's most fascinating construction projects. Includes glossary, websites, and bibliography for further reading. Perfect for STEM connections. Aligns to the Common Core State Standards for Language Arts. Teachers' Notes available online.