A couple from Bristol who had trouble selling their house, found out they had an original Banksy on their wall, and received twice the asking price by selling the painting with a house attached.
7
In China, teachers allow children to sleep in class for around 20 minutes to help improve their learning.
13
Genghis Khan exempted the poor and clergy from taxes, encouraged literacy, and established free religion, leading many peoples to join his empire before they were even conquered.
28
There are approximately three million shipwrecks on the ocean floor, worth billions in value and treasure.
22