>> exactly. >> then you see this is the cave which of course has been shaped but this wall is artificial. next door is the holy tirn face. >> father murphy o'connor took us there for a look. >> there is very little evidence of the original cave left here. >> whatever is original is down below us here. >> tradition has it christ would have been born on the other side of the cave but this is part of the same cave system. >> it is all part of the cave system. that is an entirely artificial wall it goes taupe the roof of the cave. you can see the bedrock all above it. this is the area that has been excavated. >> the excavation early 1960s turned up evidence that it was occupied during the time of david right up to the time of jesus. >> there was traces of guns and broken pottery and coins it was used for stabling and storage.