The remains of ancient civilizations hold the keys to the fascinating histories of vanished cultures and their many secrets. Are these places still haunted by long-past tragedies? In this title, readers will glimpse abandoned ruins such as Machu Picchu, Peru, known as the Lost City of the Incas. In 1911, explorer Hiram Bingham discovered this deserted city high in the Andes Mountains after it had been forgotten for 400 years. The beautiful remnants of the city included about 200 stone buildings. ....