The ground to the north of Jerusalem, as far as the city of Samuel, which is called Ramatha, is at intervals rough and stony. There are open valleys, covered with thorns, extending all the way to the region of Tamnitis; but, on the other side, from Ælia (Jerusalem) and Mount Sion to Cæsarea of Palestine, though some narrow and craggy places are found, yet the principal part of the way is a level plain interspersed with olive-yards. Arculf states that few trees are found on Mount Olivet, except vines and olive trees, but wheat and barley flourish exceedingly; the nature of the soil, which is not adapted to trees, is favourable to grass and flowers. The height of this hill appears to be equal to that of Mount Sion, although it is much more extensive in length and breadth: the two mountains are separated by the valley of Jehoshaphat. On the highest point of Mount Olivet, where our Lord ascended into heaven, is a large round church, having around it three vaulted porticoes. The inner apartment is not vaulted and covered, because of the passage of our Lord's body; but it has an altar on the east side, covered with a narrow roof. On the ground, in the midst of it, are to be seen the last prints in the dust of our Lord's feet, and the roof appears open above, where he ascended; and although the earth is daily carried away by believers, yet still it remains as before, and retains the same impression of the feet. Near this is a brazen wheel, as high as a man's neck, having an entrance towards the west, with a great lamp hanging above it on a pulley, and burning night and day. In the western part of the same church are eight windows; and eight lamps, hanging by cords opposite them, cast their light through the glass as far as Jerusalem; which light, Arculf said, strikes the hearts of the beholders with a mixture of joy and divine fear. Every year, on the day of the Ascension, when mass is ended, a strong blast of wind comes down, and casts to the ground all who are in the church. All that night, lanterns are kept burning there, so that the mountain appears not only lighted up, but actually on fire, and all that side of the city is illuminated by it. Arculf visited at Bethany a field in the middle of a large grove of olives, where there is a great monastery, and a church built over the cave where our Lord raised Lazarus from the dead. There is also a much frequented church to the north of Bethany, on that part of Mount Olivet where our Lord is said to have preached to his disciples.