From initial design to grand opening, this nonfiction early chapter book shows how the Gateway Arch was engineered and built. As the tallest arch in the world, the Gateway Arch in St. Louis is an engineering feat. Millions each year travel to the viewing deck on top using the unique tram system. Elementary readers will learn why the gateway to the west was built and how engineers designed and constructed it. A progressive timeline highlights the construction sequence, from idea to national landmark. Carefully leveled text and historical photographs inspire future engineers and architects and support elementary STEM topics. Table of contents, glossary, index, further resources, and author bio are included.