1) The Andes, stretching along the western coast of South America, is the longest mountain range in the world, spanning over 4,300 miles (7,000 kilometers).

2) The smallest unit of time is known as a zeptosecond, which is equal to one trillionth of one billionth of a second.

3) The concept of insurance dates back to ancient times when merchants would distribute their goods across different ships to reduce the risk of losing everything in a single event.

4) The Great Barrier Reef in Australia is the largest living structure on Earth and can be seen from space.