The 14,000-foot-high plain of the Andes, where the Inca civilization flourished five centuries ago, is as barren a land as the world possesses. With its packs of llamas running across the puna, ...

Previously published as four separate volumes, Step into the Aztec and Maya worlds, Step into the Inca world, Step into the world of North American Indians and Step into the Arctic world. ENCYCLOPEDIA ...

Previously published as four separate volumes, Step into the Aztec and Maya worlds, Step into the Inca world, Step into the world of North American Indians and Step into the Arctic world.