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

2) The Bugatti Veyron, one of the fastest production cars in the world, can reach speeds of over 250 miles per hour (402 km/h).

3) The Earth's core is hotter than the surface of the Sun.

4) The intensity of cyclones is often measured using the Saffir-Simpson Hurricane Wind Scale, which categorizes them based on their sustained wind speeds.