1) The world's largest volcano, Mauna Loa in Hawaii, is also one of the most active. It stands over 13,000 feet (4,000 meters) above sea level.

2) The New York Stock Exchange (NYSE) is the largest stock exchange in the world.

3) Mount Everest, located in the Himalayas, is the highest mountain on Earth, reaching a peak elevation of 29,032 feet (8,848 meters).

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