Can you solve this simple riddle?
Videos
Why are we afraid of heights?
Eye – Optical illusion that causes natural hallucination
The five major world religions
Pictures
The Severity Of The California Drought (Before And After Photos)
The Mystery of the Earth’s Core Explained
Quick Fit – 7 Minute Workout
The Super Supercapacitor
Autumn Impressions by Jessica Jenney
Japan Is A Totally Different World
Rain and blizzadr photos by Navid Baraty (23 pictures)
Perfectly Timed Nature Photos