The Denmark Strait cataract is a sloping portion of the seafloor between Iceland and Greenland that funnels cold water from the Nordic Seas into the Irminger Sea, fueling Atlantic Ocean currents.

When you try to come up with the Earth's largest waterfall, there are a lot of factors to take into account. Some might break it down based on sheer size, the flow rate or volume of water coming ...

Home to both the world’s largest rainforest and mightiest waterfall — the Amazon and Iguazu Falls, respectively — Brazil is a place of superlatives when it comes to natural wonders, from flooded sand ...