In 2011, a couple bought a box of textbooks for $10. Inside, they found a 25-cent bill signed by the president of the Republic of Texas, Sam Houston, and subsequently sold it for $63,250.
13
There's a café in France which charges €7 for a coffee to rude customers and €1.40 to people who talk politely to staff.
17
Elephants are among the most emotional creatures in the world - they have even been known to rescue other animals, such as trapped dogs.
25
For his time as James Bond, Daniel Craig has the privilege of taking any Aston Martin from the factory for the rest of his life.
6
The Google driverless car has only encountered two accidents. The first it was rear ended at a stop sign, and the second was when a human was behind the wheel.
7