More melted ruins they say are mountains but are not because you see this old world was highly advanced fantasy style world nothing but huge castles and enormous buildings covered the earth and powered itself from electricity which surrounds us and they used it to power their world they had different vessels and all kinds of beings, giants even part animal part human plus dragons so it was kind of fantasy world and they show us in certain movies and was a completely different reality so this old world was huge hence the piles of rubble left after the melt they call mountains