At about every half mile of their length these walls are pierced by main gateways for the passing to and fro of the inhabitants. In these situations the inner wall is increased to more than treble its ordinary thickness, and the passage is flanked by a pair of the greater towers, which here approximate at much less than their usual distance. The thoroughfare consists of a deep and lofty archway, which on occasion can be closed by ponderous doors revolving on huge iron hinges. Opposite each gate the moat is crossed by wooden drawbridges easily removable in case of a siege. The most southerly entrance, being opposite the holy well, is called the Gate of the Fountain; next comes the Gate of Rhegium, then that of St. Romanus, fourthly the Charsios or oblique Gate,[104] and lastly the Xylokerkos Gate—that of the wooden circus. Between the third and fourth gates the moat is deficient and the walls are tunnelled for the transit of the streamlet Lycus, which, though almost dry in summer, swells to a considerable volume in winter. The second and last portals bear metrical inscriptions, differing verbally, but each declaring the fact that the Prefect, Cyrus Constantine, built the wall in two months.[105] On the second gate, that of Rhegium, the circumstance is recorded in a Latin tristich as well as in a Greek distich.[106]
Besides these popular approaches there is another series of five gates, architecturally similar, but designed only for military or strategic purposes. About intermediate in position and in line with neither roads nor bridges, they are closed to the general public and named merely in numerical succession from south to north.[107] Just above the third gate, that is, about half way between the Golden Horn and the Propontis, the walls dip inwards for a distance of nearly one hundred yards, forming a crescent or, as the Greeks call it, Sigma.[108]
The first strategic gate, first also of the land-wall, being scarcely a furlong from the Propontis, offers a notable exception to the constructive plainness of all the other entries. Intended only as a state entry to the capital for the display of Imperial pomp, it has been built and adorned with the object of rendering it the most splendid object in this part of the city. A pair of massive towers, each one hundred feet high, advance from a façade of equal altitude, which is traversed by three arched portals, that in the centre being elevated to sixty feet. The whole is constructed in white marble, and this chaste and imposing foundation is made resplendent by the addition of gilded statues, bas-reliefs, and mouldings. From a central pedestal above rises a figure of Victory[109] with flowing draperies, her hand extended offering a laurel crown. At her feet stands an equestrian statue of Theodosius the Great,[110] and from the extremity of each tower springs the two-headed Byzantine eagle.[111] Below, the surfaces of the monument are ensculptured all round with mythological designs,[112] among which we may recognize Prometheus the Fire-giver, Pegasus, Endymion, the labours of Hercules and many others. Corinthian columns of green-veined marble[113] bound the main portal, within which is erected a great cross.[114] In the fore area are placed a pair of marble elephants, recalling those used by Theodosius in his triumphal procession after the defeat of Maximus of Gaul; and behind these his grandson,[115] the builder of the gate, has raised a column bearing a statue of himself. Profusely gilded, this elaborate pile is popularly and officially known as the Golden Gate.[116]