The value of Pi was officially “rounded down” to 3.14 from 3.14159265359 on December 31, 1999.
The Great Wall of China is the only man-made structure visible from space.
Between 25% and 33% of the population sneeze when exposed to light.
The most common name in world is Mohammed.
Mount Olympus Mons on Mars is three times the size of Mount Everest.