Cows can sleep standing up, but they can only dream lying down.
745
In 2011, archaeologists discovered the skeletal remains of a Roman couple who have been holding hands for 1,500 years.
81
A lump of pure gold the size of a matchbox can be flattened into a sheet the size of a tennis court.
140
If aliens located 60-65 million light years away from us, looked at earth through a really powerful telescope today, they would see dinosaurs!
18
The 409 escalators in the London subway cover a distance every week which is approximately equivalent to several trips around the globe!
94
There is a mass reservoir of water floating in space that is 100,000 times bigger than our sun and holds 140 trillion times more water than all of our oceans.
11
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