The rarest chocolate bar in the world is the Porcelana bar. There are only 20,000 of these bars produced a year, and they sell for $90 per pound.

When Krakatoa erupted in 1883, its force was so great it could be heard 4,800 kilometres away in Australia.

Pele has always hated his nickname, which he says sounds like "baby-talk in Portuguese".

AMAZING FACTS