The mountain has three summits in a line lying north and south. The northernmost, which joins on to Mount Scopus, is known by the name of Viri Galilæi; on it we find a large cistern and some ruins, apparently the remains of a watchtower. The guides call them the ruins of a convent, and not improbably one belonging to the Syrians stood here at the time of the Crusades, as is shewn by the following passages: "Near the Mount of Olives, on the left, is a monastery of the Syrians[657]," and "there is a place suited for a camp, and buildings seem to have been there. On the summit there is a cistern, and the whole place is delightsome[658]." The name of Viri Galilæi is given by the inhabitants of the country, who believe that the two men clothed in white stood there and addressed the Apostles, "Ye men of Galilee, why stand ye gazing up into heaven[659]?" The legend is obviously inadmissible, as the vision evidently occurred at the place of the Ascension[660]. The more probable reason, according to Quaresmius[661], is, that a house stood there bearing that name, which was so called because it was frequented by the Galilæans when they visited the city on the occasion of any festival. The second and highest summit is the one traditionally pointed out as the place of the Ascension[662]; in accordance with the words of the Acts of the Apostles[663], "Then returned they unto Jerusalem from the mount called Olivet, which is from Jerusalem a sabbath day's journey." Some consider the account in S. Luke's Gospel[664] opposed to this belief, where it is said, "He led them out as far as Bethany." But as the Mount of Olives is in the district of Bethany, the Evangelist may very well have put the whole for the part; so that there is no reason why we should not accept the site at present known as the scene of the Ascension. The third summit is the Mount of Offence, of which we have already spoken. The name of Olivet is derived from the olive-trees, which are still cultivated upon its slopes, though now in very small numbers. Mariti[665] says, "it is still known by the name of the Celebrated and Holy Mountain[666]." Quaresmius and Ludolph[667] remark that in some ancient versions of the Acts of the Apostles, we find in ch. i. ver. 12, the 'Mount of the Three Lights' instead of the 'Mount of Olives.' Both of them explain the origin of this name to be that during the night these three summits were illuminated on the west by the light of the fire on the altar of the Lord, which was kept always burning, and in the morning on the east by the beams of the rising sun, before they fell upon Jerusalem. Reland asserts that from its three eminences it is called the Mount of the Three Summits.