The Mystery Tour is a multi-sensory approach to the man-made environment. It is designed to acquaint children with historical significance of buildings and architecture and thus prepare them to participate in decisions concerning historical preservation. Developed through a grant from the national Endowment for the Arts, the Mystery Tour guides children through areas of the built environment. Participants in the Mystery Tour utilize various senses to study buildings and gain empathy for the history of man-made structures. The Mystery Tour booklet outlines the theory and technique of the Mystery Tour. Part I presents the goals and objectives. Part II is a collection of activities and ideas for organizing and conducting the exercise. Part III is a summary account of the program as it functions at Echo Hill Outdoor School (Maryland). A short list of books for further reading concludes the booklet. (RE)