Long-lost civilizations

"Bonampak, Troy, Machu Picchu--these and other sites were . . . 'long lost' to the modern world. Then, using scientific tools, archaeologists revised and revitalized the stories of these 'lost' civilizations. Through color images and . . . facts presented in . . . text and . . . sidebars, students will learn how scientists rediscovered and scientifically dated murals, sculptures, and artifacts covered with grime or buried under ashes and stones"--Provided by publisher.