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A selection of the greatest and most defining moments of the Sochi Winter Olympics
Sochi 2014 event guides
Get to know your Nordic combined skiing from your biathlon and snowboard parallel slalom from luge.
Classic Winter Olympic moments
Watch highlights of legendary Austrian skier Hermann Maier winning two gold medals at the 1998 Winter Olympics in Nagano.
Explore the BBC
The Doctor arrives in Victorian London to find a dinosaur rampant in the Thames