Melvyn Bragg and guests discuss the Maya Civilization, developed by the Maya people, which flourished in central America from around 250 AD in great cities such as Chichen Itza and Uxmal with advances in mathematics, architecture and astronomy. Long before the Spanish Conquest in the 16th Century, major cities had been abandoned for reasons unknown, although there are many theories including overpopulation and changing climate. The hundreds of Maya sites across Belize, El Salvador, Guatemala, Honduras and Mexico raise intriguing questions about one of the world's great pre-industrial civilizations. With Elizabeth Graham Professor of Mesoamerican Archaeology at University College London Matthew Restall Edwin Erle Sparks Professor of Latin American History and Anthropology at Pennsylvania State University And Benjamin Vis Eastern ARC Research Fellow in Digital Humanities at the University of Kent Producer: Simon Tillotson.