Atlantic Ocean

The Atlantic Ocean is the second-largest of the world's oceanic divisions. With a total area of about 106,400,000 square kilometres (41,100,000 sq mi), it covers approximately 20% of the Earth's surface and about 26% of its water surface area. The first part of its name refers to Atlas of Greek mythology, making the Atlantic the "Sea of Atlas".

According to legend, the mythological lost continent (sometimes classified as a city) of Atlantis is located in the Atlantic Ocean. In 2011, a team, working on a documentary for the National Geographic Channel, led by Professor Richard Freund, from the University of Hartford, claimed to have found evidence of the city in the Doñana National Park mud flats in South Western Andalusia, in Spain.