Abstract
The concept of visual anchor is introduced to explain the spatial orientation and rating its degree. The spatial orientation contrib utes to urban legibility and it is important to control by methods in urban planning. 26 subjects evaluate the effect of perspective composition including landmark on the orientation. They are requested to point out from where some pictures of landmark are taken on the map. The degree of orientation is rated as errors on distance, location, and direction between standing point and landmark. Results imply that the spatial relationship of visual elements on the perspective image is effective.