Some sharks remain on the move for their entire lives. This forces water over their gills, delivering oxygen to the blood stream. If the shark stops moving then it will suffocate and die.

The Main Library at Indiana University sinks over an inch every year because when it was built engineers failed to take into account the weight of all the books that would occupy the building.

A private elementary school in Alexandria, Virginia, accidentally served margaritas to its schoolchildren, thinking it was limeade.

AMAZING FACTS