This study examines map design concepts and principles as they apply to effectively navigate an information space. Under the assumptions that one way of facilitating navigation in any man-made environment is to provide a visual representation of its organizing principles. And that the most effective forms of visualization are three-dimensional models, this study proposes that providing a three dimensional representation of the underlying structure of a web site results in increased navigation performance. The literature review addresses the cognitive, functional, visual and factors that determine the effectiveness of navigation systems along with a study of the graphic variables and principles of good web navigation design, providing the criteria to develop a three-dimensional web site-map prototype for a randomly chosen web site. The interdisciplinary approach used for this research facilitated the discovery of an alternative solution to common problems of web navigation. A three-dimensional map is a real alternative to improving navigation on web sites because it takes advantage of human common experience in the three-dimensional world and perception abilities to make users rely on intuition rather than recall when navigating an information space.