With the same group we class the district inside the circuit of the Halys, the monuments of which are almost confined to the famous ruins of Boghaz-Keui, with the neighbouring sculptured sanctuary of Iasily Kaya, and the walled mound and palace of Eyuk, both of which are described in later chapters. There are, however, one or two features which may be appropriately singled out for comparison in this chapter, notably the inscription in relief on the rock called Nishan Tash, on the high ground of the citadel at Boghaz-Keui, and a couple of building blocks sculptured like those of Sinjerli, Malatia, and Eyuk, recently found at the foot of the acropolis. If we may mention also two objects of doubtful _provenance_, these introduce a place called Eski-Yapân, on the road from Sungurlu to Chorum, where an architectural lion is built into a modern wall,[172] and Denek-Madên, near to Cheshme-Keupru, where an interesting round ivory object engraved with Hittite characters and signs has been rescued.[173] [Illustration: PLATE XXXVI CÆSAREA: TURKISH CEMETERY, NOW DISUSED (_See p. 23._)] We are inclined to group together all the monuments westward of the Halys (D), including with them the two famous sculptures near the Lydian coast. We thus bring together for comparison the rock carvings of Giaour-Kalesi and of Kara-Bel, which are analogous, and the dethroned Niobe seated on Mount Sipylus. In the Phrygian country there are on record an inscribed stone at Bey-Keui, and a sculpture with uncertain hieroglyphs at Doghanlu Daresi. A relief found at Yarre, representing a ceremonial feast, conforms with a definite class of Hittite sculptures found elsewhere on the several sites mentioned in the list above. The same may be said, though with less confidence, of carved slabs found in the vicinity of Angora, representing lions, but we exclude the sculptured lion to be seen near the bridge at Cheshme Keupru. The remarkable thing about the disposition of these monuments, excluding the reliefs at Angora, is that they seem to mark out the line of a single road, namely the Royal Road from Boghaz-Keui to Sardis and the west.[174] The only reasonable doubt seems to be as to the route from Giaour-Kalesi to Boghaz-Keui, about which there is no evidence. Some students of the local topography think it must have gone by way of Angora, in spite of the tradition (which in the absence of evidence becomes of interest) that Angora was a comparatively late Phrygian foundation.[175] Others urge[176] that it was improbable that the road ‘swerved southwards to Giaour-Kalesi,’ an opinion seemingly forgetful of the road’s objective.[177] The district westward of Iconium, in which are found the Lycaonian-Hittite monuments of Eflatoun-Bunar and Fassiler, stands by itself. But as there is only one clearly Hittite object from this region, namely a stone inscribed with hieroglyphs in relief, from near Kolitoghlu Yaila, near Ilgîn, we include this with the main western group.