Underground Cities: Did you know some cities are built underground? They could be hidden just beneath our feet! Let's dig deep to uncover where these cities are hiding and the secrets they contain! Hidden, Lost, and Discovered: Go on an epic journey to explore some of the most interesting places from around the world. Some people may not even know they exist! Includes: This 32-page nonfiction book for grades 3-8 features eye-catching photos, hidden histories, and fascinating facts about some of the world's most amazing locations. Benefits: Discovering the world's intriguing history will engage readers in this high-interest lower-reading-level series, and keep them coming back for more! Why Rourke: Since 1980, we've been committed to bringing out the best nonfiction books to help you bring out the best in your young learners. Our carefully crafted topics encourage all students who are "learning to read" and "reading to learn"!

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