public museum and art galleries will not be needed because people can see art by using a computer. Due to the help of the development of computers, there are more and more online museums and art galleries. There new technologies attract lots of people’s eyes and many people decided to visit the online museums instead of a real one. Do, some people think that museums and art galleries are no longer needed. In my point of view, public museums and art galleries are still played an important role in community. First of all, art galleries and museums are sometimes city’s signal. It is a sign of the history of a city. In many city museums, there are a lot of old real things there which records the changes happened in this city. They are the eyewitness of the past. What’s more different art galleries can also shows not only the citizens but also the visitors how many great artist came out from that city. They are the proud of that city. Secondly, art galleries and museums can also help people who are studying art and archaeology. Since most of the things that in an art gallery and a museum are real things, students can have a more clear though about how the color is and also why it looks like this. But it is in an on-line museum or art gallery, no matters how big the picture you can put up, the color and the model cannot be the same as it is in an art gallery or a museum. In a conclusion, reduce art galleries and museums are never a good idea, and it is ridiculous to use a computer instead of it.