If you have 1 billion dollars and spend $1,000 every day, it would take you 2,740 years to go broke.
31
The 409 escalators in the London subway cover a distance every week which is approximately equivalent to several trips around the globe!
94
Mars had an oxygen-rich atmosphere around 4 billion years ago
13
The strangers in your dreams are actually people that you've seen in real life.
50
Only about 2% of the world population has green eyes.
36