Different museums have different specializations. They deal in different themes, time periods and have different purposes. There are museums of archeology, history museums, art museums - even weird ones. Read more about museum interesting facts.
Although museums have fairly defined types there are still museums can fit in those types but only if they are taken very broadly. Read some interesting facts about museums.
Purpose of museum is keeping, caring and study of nature and artifacts. But different fields need different kinds of museums. Here you can read more about types of museums.
Historic house museum is a house with historic authenticity that is centered around the person that lived in the house or the social role that house had in its time. You can read more about historic house museum here.
High technology didn’t circumvent museums and many of them choose to make virtual versions of themselves on the internet. Some of them don’t even have their real world version - just virtual. Here you can find out more about virtual museums.