The castles on the white side are:
INDIGENOUS TOTEM POLES

In a chess set based and a series dealing with mystical and alternative beliefs, what better to represent the castles on the "white" side that indigenous totem poles?

My original thoughts included using the J. Edger Hoover building as castles. But I thought the totem poles were way more interesting. After all, it's not like our heros never had dealings with native American Indians.