The diverse buildings that front directly onto the Mall in Washington, D.C. comprise the Smithsonian Institution, one of the world's most celebrated museums. It is with little surprise that this Web site is such an excellent source of information about the educational delights offered by this august American institution. The site is divided simply into three main categories: Educators, Families, and Students. The Educators section contains hundreds of lesson plans for a variety of age groups -- all dealing with a number of topics, such as language arts, science, and history. Equally helpful is the customized search engine that allows educators to look for educational resources (some of which are designed to be in situ with different exhibits) by document type, keyword, subject, and grade. The Families section is specifically designed to function as a guide to visiting the Smithsonian museums, and features information about special presentations and other local sites. Finally, the Students section allows students the opportunity to go behind the scenes in the interactive feature "Secrets of the Smithsonian" and to learn about the art and science of collecting as embodied by the special collections (and collectors) profiled in the section titled "Amazing Collections."