Here are some possibilities:
* Are you talking about miniature animals? If so, they live in a wide variety of places, depending on the specific species. For example, tiny insects like ants live in ant colonies, while miniature fish like guppies live in aquariums.
* Are you asking about miniature people? While there are fictional stories about miniature people, they don't actually exist in real life.
* Are you referring to miniature versions of objects? These are typically found in dollhouses, model railroad sets, or other scaled-down representations of real-world settings. They are usually kept in homes or museums.
Please provide more context so I can understand your question and give you a helpful answer.