Bethlehem, about 9km south of Jerusalem, is celebrated by Christians as the birthplace of Jesus Christ. Here Mary gave birth in a cave used for animals. Here the local shepherds came to worship the baby, and here the Three Wise Men from the east came to pay homage and present their gifts. The cave where the birth took place and the manger stood can now be visited underneath the huge Basilica of the Nativity. This is the oldest complete church in the Christian world.