Collinia

«Collinia» is a city in Aincrad of the game Sword Art Online. It is located on the seventy-fifth floor, with the city based on Ancient Rome. It has many fighters living in the city and it was bustling with activity. This city is the last location unlocked, before the destruction of «Aincrad».

When the game is cleared, Kirito and Asunawatch «Collinia» crumble into the clouds along with the other floors.