1) The world's largest desert is the Sahara Desert in Africa, covering an area of about 3.6 million square miles (9.4 million square kilometers).

2) The sitcom "Friends" is known for its iconic Central Perk coffee shop, where the main characters often gather.

3) The FIFA World Cup is the most-watched sporting event globally, with billions of viewers tuning in for the tournament held every four years.

4) The concept of gravity was famously described by Sir Isaac Newton after an apple fell on his head.