1. The longest Olympic torch relay in terms of distance in history;2. The most cities within one country that the torch has passed through, as well as the longest time and distance for the torch relay and the most people participating in the relay;3. The largest number of Olympic songs ever, with thousands of songs submitted and dozens of songs making it to the final round;4. The first Olympics held in the most populous country;5. The first Olympics in history to be broadcast live in full HD;6. The Olympics with the most co-host cities;7. The largest single steel structure main stadium in Olympic history - the Bird's Nest;8. The first swimming venue in Olympic history constructed using membrane structure technology - the Water Cube;9. The Olympics with the most mascots in history - five;10. The Olympics with the most participating countries and teams;11. The most expensive Olympics in history, with a total investment of 194.1 billion yuan;12. The highest-altitude Olympic torch relay in history - the Mount Everest torch relay;13. The Olympics with the strictest date selection in history - the Olympics of "eight": on August 8, 2008 at 8:00 PM;14. The Olympics with the most people participating in volunteer selection, and also the most volunteers, reaching 500,000;15. The first use of precious metals and jade together to make Olympic medals;16. The Olympics with the most tickets sold, totaling 7 million;17. The largest Olympic press corps in history: with 40,000 journalists conducting on-site interviews;18. The largest simultaneous viewership in history: 4 billion people around the world will watch the live broadcast of the Olympics simultaneously;19. The longest broadcasting hours in history: Beijing Olympics will broadcast live coverage of all events for 5,400 hours, 2,000 hours more than the 2004 Athens Olympics;20. The construction of the world's largest park: the "Olympic Park" will become Beijing's new "oxygen bar".