Norvrandt! That was the name of the region! So Norvrandt = Eorzea of the First or such.

Also, looking at your starting post Anonymoose, I think they hinted that there wasn't really a Crystal Tower on the First, following with a 'hmmm' and some silence. So I throw out the guess that it's actually the Crystal Tower of the Source and we use it as our 'ship' for inter-shard travel, bringing it there.