Sushi originated from Japan and they are now commomly made and sold in many places, for example: Amercia, Korea and China. Sushi is made of rice, seaweed, and seafood/veggies also raw fishes. Most sushi come in rolls. The interior is usually where the veggies, meat, seafoods are placed.Then around that, there's rice and dry seaweeds are wrapped around the rice.They may come in a variety of shapes.
Below are some top recommended sushi(from wikipedia):