Our planet is full of fascinating creatures with unique characteristics and often awe-inspiring abilities. Test your knowledge of the animal kingdom with these multiple choice questions.

Originally a solution to the space problem, skyscrapers have come to symbolise ambition and transcendence. See how much you know about these iconic buildings.

A Stock Symbol - or Ticker - is a series of characters (usually letters) that represent the company on a stock exchange. Most are simple abbreviations of the company name but some are more creative than that. Test your knowledge of some of the best ticker symbols with these multiple choice questions...

Many of history’s greatest inventors have become household names. See how much you know about these pioneers who changed the world with their inventions.