The Atlantic is the second-largest ocean on Earth, covering about 20% of the planet's surface. It separates the continents of North America and South America from Europe and Africa. The Atlantic Ocean is known for its rich biodiversity and plays a crucial role in global weather patterns and ocean currents. Historically, the Atlantic has been significant for trade and exploration. It was the route for many famous voyages, including those of Christopher Columbus and Vikings. Today, it remains vital for international shipping and is home to numerous islands, such as Bermuda and Iceland.