1) The speed of light is approximately 299,792,458 meters per second.

2) The musical "Les Misérables" is one of the longest-running shows in the West End and Broadway, with over 13,000 performances.

3) The banking industry is regulated by government agencies to ensure the stability and integrity of the financial system and to protect consumers.

4) Orchids are one of the largest families of flowering plants, with over 25,000 species.