1) The world's largest diamond, the Cullinan, was discovered in South Africa in 1905 and weighed over 3,000 carats.

2) The Southern Ocean surrounds Antarctica and is the coldest and least-visited ocean.

3) DNA, the building block of life, can store incredible amounts of data. It is estimated that one gram of DNA could potentially store about 215 petabytes of data.

4) The Cricket World Cup is held every four years and features teams from around the world competing for the prestigious title.