1) The Great Wall of China is not visible from space without aid, contrary to popular belief.

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

3) The Bank of England, established in 1694, is the central bank of the United Kingdom and one of the oldest central banks in the world.

4) The ancient city of Athens, Greece, is often considered the birthplace of democracy, where citizens had a say in the decision-making process.