Masteria Expansions, Names and the proof for each

yeah. I really doubt they knew at all back then, either side. Even if there were people who did know, it'd probably be a secret kept for the strongest of strong (Grandmasters).

hehe, reminds me the end of "FullMetal Alchemist".. in the final episode, there's a huge dead city, which was kept in secret underground with a horrible history- exactly under the centeral city in the anime. lol

so, my suggestions:

bigger ben [SIZE="4"]NLC[/SIZE]
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[SIZE="4"]Old Sapp Village [/SIZE][which is destroyed, or some people/monsters are living there. anyway there's a huge secret underground.]