Here's a fun fact with the topic being geography

The Sahara is famous, but Antarctica is actually the world's largest desert because deserts are defined by low precipitation, not heat, Antartica also covers an area of about 14.2 million square kilometers (5.5 million square miles). The reason why Antartica is classified as a desert is because to be classified as a desert, an area must get less than 250 millimeters (10 inches) of rain or snow per year. And because Antarctica is so cold, the moisture freezes instantly, and it rarely ever snows or rains there, making it a polar desert.