Ancient Greece and the Olympics American Revolution Sabertooths and the Ice Age Pilgrims Ancient Rome and Pompeii Tsunamis and Other Natural Disasters Polar Bears and the Arctic Sea Monsters Penguins and Antarctica Leonardo da Vinci Ghosts Leprechauns and Irish Folklore Rags and Riches: Kids in the Time of Charles Dickens Snakes and Other Reptiles Dog Heroes Dolphins and Sharks Games and Puzzles from the Tree House Abraham Lincoln Pandas and Other Endangered Species Horse Heroes Heroes for All Times Magic Tricks from the Tree House Soccer Ninjas and Samurai Show Me More