Trinity Church, perhaps in a greater degree than any coeval structure in Leinster, retains the original character of its various parts. It is near the entrance to the glen, and possesses a fine specimen of the square-headed doorway, and a choir arch, of its class one of the finest in Ireland. The east window of the chancel has a semicircular head, and the arch is cut out of a single stone; there is also a triangular-headed window in the south wall; in fact, the building has almost every characteristic of the more ancient style of church architecture in Ireland, and each perfect in its way. There was formerly a round tower belfry attached to the western end, which fell in 1818. St. Saviour’s Monastery, on the opposite side of the river, near Derrybawn, is a singularly interesting ruin. It consists of a nave and chancel, measuring together about 60 feet by 30 feet. The fine chancel arch, which had fallen, has been restored; it is of three orders resting upon clustered piers; the capitals are highly ornamented with fantastic sculptured heads of animals, and the arch displays a variety of zigzag or chevron moulding, showing work many centuries later than the most primitive of the buildings. [Illustration: Chancel Arch, Trinity Church, Glendalough.] Reefert Church, on the south bank of the upper lake, was the first founded by St. Kevin before he moved to the lower part of the valley. It consists of a nave and chancel, the combined length being 43 feet by 26 feet. The dividing arch is the full width of the chancel. The doorway is of chiselled blocks of granite; it is 5 feet 9 inches high and square-headed, with inclined jambs. The enclosure in which it stands has been strangely interfered with by the Board of Works, and laid out in a most artificial manner. It was the burial-place of the O’Tooles; and an ancient inscribed tombstone, popularly said to belong to the famous king of the tribe, has disappeared, having been broken up and sold, it is said, by guides in the middle of the last century. There are other remains of churches--the Priest’s House, St. Kieran’s, and Temple na Skellig. There are numerous crosses; and the round tower is one of the largest and most perfectly preserved now remaining. Much attention is usually paid to the singular chamber called ‘St. Kevin’s Bed.’ That it is altogether a work of art cannot be satisfactorily demonstrated. Though, to a certain degree, its artificial character is distinctly marked, it is quite possible that a natural cavity, the sides of which have been roughly hewn and squared, may have existed previously. The Bed, which is situated in an almost overhanging rock, at some height above the lake, is said to have been the residence of St. Kevin at some period when pursuing that course of study and contemplation for which his name, even to this day, is revered; and the celebrated St. Laurence O’Toole is said to have spent much of his time in prayer and heavenly contemplation in this cavern.