The Museum is the white building and the gray roof. It is the place where all of your bug, fish, fossil, and painting donations will be held. Each donation type has its own room. The Museum is run by Blathers the Owl. Downstairs in the basement is The Roost run by Brewster, and upstairs is the Observatory run by Celeste. The Museum is found in all of the Animal Crossing games.
 Main Room
In the main room of the Museum, there is a clock behind Blathers. The floor is checkered tile and each door to a room has a dark red rug underneath it with a picture of what the room contains. The Museum shows a downwards staircase to get to the roost and an upwards one to get to the Observatory. All of the rooms in the Museum are in all three games of the Animal Crossing Series. If you give Blathers an item that has already been donated to the Museum, Blather will not accept it and will apologize.
Blathers has a big fear of insects. Every time you donate one he will get grossed out.
When you catch a bug that you would like to donate, take it to Blathers. Blathers has a fear of bugs, so he will be reluctant to take them and will not, under any circumstances, let you take them out of their cages. Bugs will be placed in an area where there is flowers, trees, tree stumps, weeds, raffelsias, and grass to keep them alive and kicking.
The hall right above the fossil display holds the insects. Blathers doesn't particularly like them, but still takes them nonetheless. There are fifty-six insects total, and they are displayed in a non-artificial environment. Because of the DS's small capacity, the bug display room is now split up into three.
The display room is now located above The Roost. It has a new feature. When you view the bugs, there are now some stepping stones in place so you can get a better look at them. There is an abundance of trees, flowers, and ponds to keep the bugs that you have caught happy.
 Completion of the Exhibit
Once the exhibit is finally completed will tell the player this: "Hoo! Is it... even possible? Can the insect collection truly be complete?! I must say, I do not know whether to be elated or absolutely disgusted. Regardless, our thanks! I trust we can rely on your unfailing patronage! Our fate is in your hands!" Obviously, Blathers has mix emotions about this since he is petrified of bugs but is joyful that the exhibit is finally finished.
When you catch a fish and you go to donate, Blathers is the main man to go to. Blathers does not have a rational fear of fish and will take them out of their cage. He quite seems to enjoy them and will give you an interesting fact about them. Fish are kept in large fish tanks and have plaques for you to see which fish are in which tank.
Make a dull right when you enter to view the fish display. Three large tanks display all of the fish that were caught and donated. There are a total of fifty-six, and if you want to donate any, just inform Blathers in the main hall. The fish exhibit includes two tanks for lake and river fish, one behind the other. A door was in the back that led to the largest of the three tanks, the sea tank, in which fish caught in the sea were held.
In Animal Crossing: City Folk the size of the exhibit was shrunk to one room and included two tanks for lake and river fish on either side of the stairs to the upper level where a much larger tank was kept for sea fish. New to the aquarium was two smaller cylinder shaped tanks on either side of the room where smaller fish such as the Goldfish and Sea Butterfly are held. The graphics and the layout were very much improved.
When you dig up a fossil in the original Animal Crossing, you will have to send it to the Farway Museum so they can analyze it to make sure that it is legit. They will return it to you shortly when the fossil is all cleared. The fossil display consists of a few rooms and displays your huge fossils you donate.
The hall above the fish display holds the fossils. They are obtained when you dig them up, and can only be donated after being properly identified by Blathers. There is a large variety, and the collection is only complete after donating fifty-two identified fossils. Blathers can still identify your fossils.
The fossil room is very much improved and no longer needs to have several different rooms just to see all of the fossils that you have collected. The fossils are bigger and have much more detail within them. Blathers is still a licensed fossil identifier so you may just take your fossil to him, and he will now examine them right there on the spot.
 Completion of the Exhibit
Once the exhibit is finally completed will tell the player this: "Hoo hootie HOOOOOOO! You magnificent thing, <player>! You've done it! The fossil collection... is complete! A splendid achievement! Well done, my dear owlet! Well done, indeed! I trust we can rely on your unfailing patronage! Our fate is in your hands!"
You can buy painting's from Redd's Shop and take them to Blathers. Unfortunately, some of his paintings may be counterfeit. When you hand Blathers the painting, he will either accept it which means that it is real, or he will immediately tell you to take it away and tell you to get rid of it. Paintings will be framed up on a wall in their exhibit.
The last hall is the art display. It's directly across from the fossil hall and it's the most realistic. There are twenty paintings in all, but they may be hard to obtain considering 77% of them are forged. You still obtain paintings from Redd.
The art display is the same as in Animal Crossing: Wild World, the only difference being is the graphics and the amount of rooms it can handle. The paintings look much more realistic and you can make out what they actually are. Redd will be selling paintings in the city.
 Museum Model
If you donate everything that is required to the Museum, Blathers will congratulate you on a job well done and you will receive Museum Model in the mail the very next day. It isn't worth anything besides a token for all of the hard work that you have done for your town. You can display it in your room for major HRA points.
Related ThreadsThe Museum - last post by @ Apr 9, 2007
I did all the requirements to unlock the museum second floor, but it's not appearing on my public works project list! - last post by @ Dec 28, 2013
Which parts of the museum have you completed? (if any) - last post by @ Jul 30, 2009
Museum or not to Museum - last post by @ Apr 16, 2014
What's in Your Museum??? - last post by @ Jun 30, 2009