The strangers in your dreams are actually people that you've seen in real life.
50
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
In Georgia, there is an airtight room called the Crypt of Civilization that was sealed in 1940. It contains numerous artefacts documenting what life was like at the time of sealing, and is scheduled to be opened in the year 8113 to show people of the future exactly what life was like.
13
Mars had an oxygen-rich atmosphere around 4 billion years ago
13
Some monks can increase their body temperature so much they can dry soaking sheets in a freezing room!
31
An unprotected human can survive up to 1.5 minutes in space with no permanent bodily damage.
82