Flag of the undersea nation Atlantis, white pyramid with red eye surrounded by light blue domes on dark blue field. The domes are indicative of undersea living, while the pyramid is a reference to the Pyramid of the Eye mentioned in fiction. Atlantis is a major railway terminus in the Atlantic Ocean.
Flag of the undersea nation Octopus's Garden (章魚の園), protective gold octopus on dark blue field. Octopus's Garden is in the Pacific Ocean, and provides rail service between Pacific Rim nations, making it a major economic power.
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