Miniature dioramas are typically much smaller, and use scale models and landscaping to create historical or fictional scenes. Such a scale model-based diorama is used, for example, in Chicago 's Museum of Science and Industry to display railroading. This diorama employs a common model railroading scale of 1:87 (HO scale). Hobbyist dioramas often use scales such as 1:35 or 1:48.