1) The world's largest ocean, the Pacific Ocean, covers an area of approximately 63 million square miles.

2) The largest known dinosaur, Argentinosaurus, weighed around 70-100 tons and measured up to 100 feet in length.

3) The Himalayas, known as the "Roof of the World," are home to numerous majestic peaks, cultural diversity, and unique wildlife.

4) The world's first credit card was introduced in 1950 by Diners Club.