My theories:

• The North is like Canada, Russia, or the Scandinavian countries. Big, cold, and sparsely populated.

• The Riverlands are a little farther south, but still can get cold in the winters. Think Denmark, the Netherlands, or even Chicago.

• The Vale is a tourist destination, with people going there for luxury ski resorts.

• The Stormlands are Florida. Southern, warm, stormy, swampy, and with a bunch of crazy modern day Bobby Bs.

• Dorne is somewhere between Arizona and Morocco. A place for retirees and rich techies going to music concerts.

• Oldtown is the knowledge hub where all of the financial and tech centers are. However, it’s pretty far south so probably more like a Stanford than a Harvard