Garrett G. Fagan is Associate Professor of Classics and Ancient Mediterranean Studies at Penn State University. He was educated at Trinity College, Dublin and McMaster University Canada. His main research interests lie in the field of Roman History, about which he's published numerous scholarly articles. He has lectured widely on topics in Roman history, and this year coedited From Augustus to Nero: An Intermediate Latin Reader. His newest book is Archaeological Fantasies: How Pseudoarchaeology Misrepresents the Past and Misleads the Public. In this interview with D.J. Grothe, Fagan explains the differences between archaeology and pseudoarchaeology, emphasizing how the science of archaeology benefits society. He explores possible motivations of pseudoarchaeologists, and challenges various pseudoarchaeological theories, such as Atlantis, the origins of the Great Pyramids in Egypt, and the theories purporting to discover great pyramids in Bosnia. He also details the various ways that pseudoarchaeology and other pseudoscientific thinking may harm society.