¡Sin resolver! Lugares misteriosos (Unsolved! Mysterious Places) (TIME FOR KIDS® Nonfiction Readers)

From Stonehenge to the Bermuda Triangle, there are many places on Earth that remain a mystery to scientists! Readers will discover these curious places--and more!--as they move through this fascinating nonfiction title that has been translated into Spanish. This book features detailed images, informational text, and stimulating facts and theories in conjunction with upper-level features, such as chapter format, a glossary of terms, and an index.