In the days of the Bible, Ben Hinnom Valley sat on the border between the tribe of Judah and the tribe of Binyamin. Seems to be just a place in Jerusalem, but the worst part still hasn't been told. Back in the days of the monarchy, this place was a place of worship for the monarch - the Ammonite god. Yes, during the days of the monarchy in Israel, stages of idolatry were built by the residents of Jerusalem. Here they built stages for the king, where they sacrificed their young children and burned them with fire, as a sacrifice to the monarch. It is hard to believe, but there were even the kings of Judah who sacrificed their infants.
The phenomenon was mentioned in the book of Divrei Ha-Yamim chapter 33: The prophet Jeremiah, a logical prophet of rage, was just as shocked as you and punished the residents of Jerusalem for burying their sons and daughters. Josiah also spoke out against this strange worship and "and he defiled Topheth, which is in the valley of the children of Hinnom, that no man might make his son or his daughter to pass through the fire to Molech," as written in the book of Kings II, 23, verse 10.
There are few scholars who believe that the origin of the name "hell" comes from, or at least is connected to this place, Ben Hinnom Valley, where the evil work of the wicked took place. Jewish tradition also links Ben Hinnom Valley to the name "Hell," as a place in the next world, where the wicked go to. Hence the legend was born that in Jerusalem is the opening of hell. Incidentally, in the lower part of Ben Hinnom Valley was the Inferno, which is often mentioned together.
Even today, there are few travelers in this beautiful valley, slightly due to the fear of the ghosts that surround it, the spirits of the dead in the ancient Moloch rituals, the children sacrificed to a clay god, all imaginative.