Animal Crossing/Points of Interest

Tom Nook
Tom Nook is the raccoon who sells you your house and its expansions and runs Nook's Cranny, the local general store. Here you can buy tools, plants, stationary, floors ,wallpapers and assorted furniture, shirts and umbrellas. Additionally, Nook offers a catalog where previously or currently owned items can be ordered, when certain conditions are met, Nook's store will expand and include a wider variety of items.

Able Sisters
Hedgehog sisters Mabel and Sable run the Able Sisters, the local design store. You can make designs which can be placed on floors, walls, and clothes. Talking to Sable each day will eventually get her to open up and talk more about herself.

Museum
One animal can be found in the museum: Blathers in the main room. Donate fish, fossils, insects and paintings to Blathers.

Post Office
The Post Office is where Pelly, Phyllis and Pete work and where one can send or save their letters to anyone in their town or their future self. You can also repay your home loan and access your in-game bank account.