+GROTTO TEMPLES.+ Two other styles of temple remain to be noticed. The first is the subterranean or grotto temple, of which the two most famous, at Ipsamboul (Abou-simbel), were excavated by Rameses II. They are truly colossal conceptions, reproducing in the native rock the main features of structural temples, the court being represented by the larger of two chambers in the Greater Temple (Fig. 13) Their façades are adorned with colossal seated figures of the builder; the smaller has also two effigies of Nefert-Ari, his consort. Nothing more striking and boldly impressive is to be met with in Egypt than these singular rock-cut façades. Other rock-cut temples of more modest dimensions are at Addeh, Feraig, Beni-Hassan (the “Speos Artemidos”), Beit-el-Wali, and Silsileh. At Gherf-Hossein, Asseboua, and Derri are temples partly excavated and partly structural. +PERIPTERAL TEMPLES.+ The last type of temple to be noticed is represented by only three or four structures of moderate size; it is the _peripteral_, in which a small chamber is surrounded by columns, usually mounted on a terrace with vertical walls. They were mere chapels, but are among the most graceful of existing ruins. At Philæ are two structures, one by Nectanebo, the other Ptolemaic, resembling peripteral temples, but without cella-chambers or roofs. They may have been waiting-courts for the adjoining temples. That at Elephantine (Amenophis III.) has square piers at the sides, and columns only at the ends. Another by Thothmes II., at Medinet Abou, formed only a part (the sekos?) of a larger plan. At Edfou is another, belonging to the Ptolemaic period.