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
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
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
In 2011, archaeologists discovered the skeletal remains of a Roman couple who have been holding hands for 1,500 years.
81
The 409 escalators in the London subway cover a distance every week which is approximately equivalent to several trips around the globe!
94
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
Mars had an oxygen-rich atmosphere around 4 billion years ago
13