In 2011, archaeologists discovered the skeletal remains of a Roman couple who have been holding hands for 1,500 years.
81
If you have 1 billion dollars and spend $1,000 every day, it would take you 2,740 years to go broke.
31
Pet dogs and elephants are the only animals that seem to instinctively understand human gesture.
14
A cow produces around 200,000 glasses of milk in her lifetime.
373
Scientists at the Zhejiang University in China have developed an ultra-light material known as carbon aerogel.
3
The 409 escalators in the London subway cover a distance every week which is approximately equivalent to several trips around the globe!
94
An unprotected human can survive up to 1.5 minutes in space with no permanent bodily damage.
82