Soup mountains

More about Soup mountains

Among those normal and boring rocky mountains, other peaks made of soap distribute their bubbles in the area, giving life to enormous ammasses of foamy soap both on terrain and in lakes and water streams. Getting caught in one of these can be fatal; for this reason, the Kingdom of What fenced the place, but you can visit it at your own risk.

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Not-so-popular italian expression which translated from italian loses its meaning: it is used to refer to a non existing or mythological place, which is analogous to referring to a very far away site.
E.g. «Yeah, wait and hope: I come from the soap mountains [like Ardea, ndr]»