Discover the top-ten most dangerous places on earth—and what makes them so threatening! The Top Ten series presents a wide range of subjects to children in a way that plays off their innate sense of excitement and curiosity. The Most Dangerous Places on Earth presents a countdown of sites from around the world ranked from 10 down to 1. You'll learn about the striking red salt lake that sits below an active volcano in Tanzania and much more! The text builds on common knowledge to reveal unexpected facts and amazing realities about the world around us.