America The Beautiful Photo Exhibition

The topics of interpretive graphics cover a wide range including archaeology, anthropology, ethnology, history, science, technology and natural history. Examples of such exhibitions may be found at the Natural History Museum, museums of the Smithsonian Institution, the American Museum of Natural History and the Field Museum — to name a few of the largest museums of this kind.
Commercial exhibitions
Commercial exhibitions, generally called trade fairs, trade shows or expos, are usually organized so that organizations in a specific interest or industry can showcase and demonstrate their latest products, service, study activities of rivals and examine recent trends and opportunities. Some trade fairs are open to the public, while others can only be attended by company representatives (members of the trade) and members of the press.