In 2011, archaeologists discovered the skeletal remains of a Roman couple who have been holding hands for 1,500 years.
81
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
Cows can sleep standing up, but they can only dream lying down.
745
There are so many kinds of apples that if you ate a new one everyday, it would take over 20 years to try them all.
34
Only about 2% of the world population has green eyes.
36
You forget 90% of your dreams.
256
The oldest glowing lightbulb was first switched on in 1901 and lives in fire stations in Livermore, CA. It is known as the Centennial Light.
118
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