Space Stations of Westeros, Vol. 1

Craster's is smaller than depicted here; I just showed it this way since otherwise barely any details would have been visible. If we'd go for an actual scale comparison, all of Craster's would have the size of one of the two outer 'knobs' on the downside of White Harbor, and even then much of it would be empty, full of junk or simply uninhabitable. Most of what is in use is living space and agricultural modules.