5.8M views · 95K reactions | In 2004, a large earthquake in the Indian Ocean triggered the largest tsunami in recorded history. One of the countries hit by the tsunami was Sri Lanka, where the wave caused one of the worst train disasters in human history when it hit the Queen of the Sea passenger line, which was carrying 1,500 passengers along Sri Lanka's west coast. Watch Destruction Decoded on Wednesdays at 8pm on National Geographic UK. | National Geographic UK | Facebook

The Athens 2004 Olympic Games Opening Ceremony took place on August 13, 2004, at the Olympic Stadium in Athens, Greece. The event featured a blend of traditional Greek culture and modern technology, with performances highlighting Greek history and mythology. One of the most memorable moments was the lighting of the Olympic cauldron by windsurfer Nikolaos Kaklamanakis. | History In Pictures