It is lighted in Olympia, Greece; the place where the ancient Olympic Games used to be held.
Olympic flame lighting
the start of the olympic games around the country
it gets lit
The flame on the cauldron is lit.
...flame in Olympic cauldron via the torch relay.
1928
at nuclear power plant
The Olympic Games flame is always on the constant run every 4 years around the country that runs it for that year; however in 2008 the start point the flame was in was Beijing!
The flame's journey starts in Olympia, Greece because it is the home of the Olympics, the town where the first ever Olympics took place. The flame's journey ends in the town that hosts the Olympics so the flame can light the Olympic cauldron and begin the Games.
From the start of the games until the closing ceremony.
An archer fired a flaming arrow to ignite the olympic flame.