Gehenna Valley. Once apparently a city dump for Jerusalem and possibly a place where Israelites sacrifice to idos. Jesus used it as a symbol of God's punishment for sin, perhaps because some thought that the idol sacrifices offered there were a reason God let the Jews get conquered and exiled. When Jesus talks about the valley in those terms, translators created an English word to express the idea: Hell.
Map Gehenna Valley
Map Gehenna Valley, location of an ancient trash heap and where Israelite kings once sacrificed their sons.
Gehenna trash heap
Mount of Olives map
Mount of Olives map. The Mount of Olives ridge of hills beside Jerusalem, across the Kidron Valley. Jesus prayed on these slopes when he was arrested.
Mount of Olives