Landscape Architecture projects have many specific requirements such as particular multimedia and geographic data integration and structure, information preview, userfriendly interface, and means of multi-actor participation. This article presents a solution for an efficient, quick and user-friendly integration, structure, exploration and management of landscape information. Our proposal extends different existing solutions and introduces useful preview abilities. A recently developed prototype implements the solution. Key-Words: multimedia, interactive and visual interfaces, metaphors, GIS, landscape architecture, sound landscapes