Simone Waisbard was a French explorer who spent years in South and Central America, studying remnants of the many ancient civilizations and tribes that have lived there. She is the author of two books: Tiahuanaco and Les Pistes de Nazca. South America South America is a continent crossed by the equator, with most of its area in the Southern Hemisphere. ... Map of Central America Central America is the central geographic region of the Americas. ...