Hinnom Valley/Gehenna, Jerusalem. 4P: UN Heaquarters in the 'Hill of Evil Counsel'- the hill where Caiphas decided to arrest Jesus (John 11:47-50).

Gehenna (Greek) or Ge Hinnom (in Hebrew) is a valley behind Mt. Zion stretching up to Kidron valley. Mentioned 13 times in Bible, "The Valley of Hinnom” is named after a "Son of Hinnom" who apparently owned the valley (Joshua 15:8). In Biblical times, the valley was used by pagan worshipers to burn children alive as sacrifices to the idols of Moloch and Baal. A section of the valley was even called Tophet, or the "fire-stove," where the children were slaughtered (2 Kings 23:10). Later the Valley was used to burn all the unclean garbage and rubbishes from Jerusalem, including the carcasses of animals and dead bodies of executed criminals. This dark valley thus became a place so much associated with evil and filth that, even the word for ‘hell’ originated from it. By the time of Christ, the constantly-burning Valley of Hinnom became a figurative equivalent for "hell”. In Matthew 10:28, Jesus used the original word Gehenna, for hell! Interestingly, the name to Islam's hell, Jahannam is also derived from Gehenna. Today, the valley known as Wadi Er Rahabbi is a beautiful grassy plain with popular landscaped parks, olive trees, a few burial caves and surrounded by Arab villages.

see more

http://www.jewishencyclopedia.com/view.jsp?artid=115&letter=G

http://www.jasher.com/Hell.htm

http://en.wikipedia.org/wiki/Gehenna