Baltic Sea
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The Baltic Sea is an arm of the Atlantic Ocean that is enclosed by Denmark, Estonia, Finland, Germany, Latvia, Lithuania, Poland, Russia, Sweden, and the North and Central European Plain.
Hel Peninsula
Cape Arkona on the island of Rügen in Germany, was a sacred site of the Rani tribe before Christianization.
The naval Battle of the Sound took place on 8 November 1658 during the Dano-Swedish War.
Nautical chart of the Baltic Sea in 1919.
Atlantic Ocean
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The Atlantic Ocean is the second-largest of the world's five oceans, with an area of about 85,133,000 km2 (32,870,000 sq mi). It covers approximately 17% of Earth's surface and about 24% of its water surface area. During the Age of Discovery, it was known for separating the New World of the Americas from the Old World of Afro-Eurasia.
As the Gulf Stream meanders across the North Atlantic from the North American east coast to Western Europe its temperature drops by 20 °C (36 °F).
Path of the thermohaline circulation. Purple paths represent deep-water currents, while blue paths represent surface currents.
Sargassum fish (Histrio histrio)
Iceberg A22A in the South Atlantic Ocean