"Large, colorful photos and simple text illustrate a structure being knocked down by a wrecking ball and other machinery"--

Play a guessing game with this riddle book about familiar animals.

Visit all the places that Denver Zoo works to help animals.

"No one knows where the term Underground Railroad came from--there were no trains or tracks, only "conductors" who helped escaping slaves to freedom. Including real stories about "passengers" on the "Railroad," this book chronicles slaves' close calls with bounty hunters, exhausting struggles on the road, and what they sacrificed for freedom. With 80 black-and-white illustrations throughout and a sixteen-page black-and-white photo insert, the Underground...