A diorama is a replica of a scene, typically a three-dimensional model either full-sized or miniature. Sometimes dioramas are enclosed in a glass showcase at a museum. Dioramas are often built by hobbyists as part of related hobbies like military vehicle modeling, miniature figure modeling, or aircraft modeling.
In the United States around 1950 and onward, natural history dioramas in museums became less fashionable, leading to many being removed, dismantled, or destroyed.