In his first Olympic Games, Jamaica's Usain Bolt bursts onto the scene in Beijing, winning the 100m in historic fashion.
View the most famous Olympic Record-Breaking moments like you've never seen them before
From Comaneci's immaculate performance to Zatopek's three gold medals in 1952, see the best athlete videos with "Pro Tips" to help you achieve greatness.
The greatest Olympic moments
How do they do it?
America's 'Dream Team' make their mark in Barcelona
A look back to when some of the world's most famous sportsmen descended on the Olympic Games to dominate men's basketball for the USA.
Strug shrugs off injury to clinch gold for USA
The USA's Kerri Strug became a national hero in 1996, but not just for her gymnastics skills.