Visit famous buildings on every continent in a best-ever world tour. In Europe, climb the Eiffel Tower, fight at the Colosseum, and lean with the Leaning Tower of Pisa. In Asia, visit the ruined city of Angkor Wat and the serene Taj Mahal. End up in the Americas amid Mayan ruins before traveling north to the Statue of Liberty and the Empire State Building towering over Manhattan. A free downloadable digital book features fun text-based questions and activities, plus audio and video enhancements. Vetted by an editorial board including Common Core Standards experts.