30. Cats Sank the Titanic
It is a common practice that cats are taken aboard ships. Not only do they help control pest issues, they are often seen as a sign of good luck. While it is widely believed that cats were taken aboard the Titanic, it would seem that there were none on the ship. So the iceberg may have sunk the Titanic, but the lack of cats is just another strange story that, looking back, adds to the unique nature of the ships sinking.