>> the journey from the galilei to jerusalem on passover would have been somewhere in the neighborhood of 100 miles and taken on foot about 7 days, so this was a really big undertaking. >> evidence of first-century jerusalem can be found deep under the modern city. >> archaeologists tunneled down for years until they finally came to this point here. this is the street level from the time of jesus. you can see the columns here that, that held up the roofs of shops where shopkeepers would have been selling their goods. you can imagine children running through the streets and people yelling at one another, and of course these are the streets where jesus would have walked towards the temple to go up to worship. i mean this -- this is a very sacred place.