Castelia City is new city in Pokemon Black and White. It is enormous with many areas including the Castelia Harbor, Market, and the Sky Arrow Bridge. It is also the largest Pokemon city ever, (kicking Saffron and Goldenrod out.) and it is also likely it is three times the size of Goldenrod and Saffron combined. When you travel through Castelia City, the camera will zoom in and out, and when you leave, the camera will show you Castelia City from a distance. It may be the area where you can get to other regions, because of the boats and harbors. It is based on Manhattan.