A lump of pure gold the size of a matchbox can be flattened into a sheet the size of a tennis court.
140
Iceland has been so culturally isolated through history since the Vikings, that compared to other Scandinavian counties, people who speak Icelandic can still read the old Norsk sagas.
4
If you have 1 billion dollars and spend $1,000 every day, it would take you 2,740 years to go broke.
31
The strangers in your dreams are actually people that you've seen in real life.
50
The focusing muscles of the eyes move around 100,000 times a day. To give your leg muscles the same workout, you would need to walk 80km (50 miles) every day.
21
No one knows Albert Einstein's last words. Just before he passed, he spoke several words in German, but his nurse only knew English.
154
Only about 2% of the world population has green eyes.
36