The 409 escalators in the London subway cover a distance every week which is approximately equivalent to several trips around the globe!
94
Only about 2% of the world population has green eyes.
36
A lump of pure gold the size of a matchbox can be flattened into a sheet the size of a tennis court.
140
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 strangers in your dreams are actually people that you've seen in real life.
50