The purpose of this study was to describe and examine the environments used by teacher candidates in multi-user virtual environments. Secondary data analysis of a case study methodology was employed. Multiple data sources including interviews, surveys, observations, snapshots, course artifacts, and the researcher's journal were used in the initial case study, while using the resulting narratives of each student's experience for the secondary data analysis. All data were coded and reviewed iteratively to inductively deduce the key considerations for virtual world environmental design. Five assertions were derived from the data to help guide the development of virtual learning environments. These five assertions focus on: novelty, the role of realism, fantastical and outdoor environments, maneuverability, and design for movement.