Natascha Kampusch (born 17 February 1988) is an Austrian teenager who was abducted at the age of 10 in 1998, and remained in custody of her kidnapper, Wolfgang Priklopil, for more than eight years, until she fled on 23 August 2006. It was widely reported in the media that she was held in a “dungeon” for the period of her confinement. This very small secret room was hidden 2.5 meters underground with only 5 m² of space — 2.78 m length x 1.81 m width x 2.37 m height. On Kampusch’s escape, Priklopil killed himself by jumping in front of a suburban train near the station Nordbahnhof in Vienna.
http://en.wikipedia.org/wiki/Natascha_Kampusch