Most of Antarctica is covered in ice over 1 mile thick (1.6 kilometer). Photo by: Justin Hofman

Walking through a frozen wave which makes a ice tunnel. Photo by: Ejosh Carr | National Geographic

While humans don’t permanently reside in Antarctica, several thousand people live and work at various research facilities found on the continent. Photo by: Agent Cooper

Flipped Iceberg In Antarctica. Photo by: Alex Cornell

Penguins floating on iceberg. Well known animals that live in Antarctica include penguins and seals. Photo by: Joshua Holko

Russian nuclear icebreaker “Yamal”, Antarctica. Photo by: unknown

The BBC filmed brinicles, solidified salt water, as they descended into Antarctic water and iced over everything sitting at the ocean bottom. Brinicles are underwater icicles that form around salt water sinking from sea ice. Photo by: BBC

A blissful blue cave in Antarctica. Photo by: Jamie Scarrow

Antarctica is bigger than Europe and almost double the size of Australia. Photo by: Kyle Marquardt

The crocodile icefish or white-blooded fish are a family of perciform fish found in the cold waters around Antarctica. Photo by: Wikimedia Commons

If all the ice in Antarctica melted, the world’s sea levels would rise by about 200 feet. Photo by: Sergei Kokinsky

U.S. Antarctic Program participant with a frozen beard. Photo by: D.J. Jennings