Among other churches ascribed to the founder of the city are those dedicated, respectively, to St. Mokius, St. Acacius, St. Agathonicus, and to Michael the Archangel at Anaplus (Arnaoutkeui), on the Bosporus.[137] There is no doubt that in the foundation of New Rome, Constantine emphasized the alliance of the Empire with the Christian Church. “Over the entrance of his palace,” says Eusebius, “he caused a rich cross to be erected of gold and precious stones, as a protection and a divine charm against the machinations and evil purposes of his enemies.”[138] Three streets running the length of the city formed the great arteries of communication.[139] One started from the south-western end of the palace enclosure, and proceeded along the Sea of Marmora to the Church of St. Æmilianus, at the southern extremity of the land wall. At that point was the Harbour of Eleutherius,[140] on the site of Vlanga Bostan, providing the city with what Nature had failed to supply—a harbour of refuge on the southern coast of the promontory. Another street commenced at the south-eastern end of the palace grounds (Tzycanisterion), and ran first to the point of the Acropolis along the eastern shore of the city, passing on the way the theatre and amphitheatre of Byzantium. Near the latter Constantine built the Mangana, or Military Arsenal.[141] The street then proceeded westwards along the Golden Horn, past the Temples of Zeus and Poseidon, the Stadium, the Strategion, and the principal harbours of the city, to the Church of St. Antony in the quarter of Harmatius. In the Strategion an equestrian statue of Constantine was placed, and a pillar bearing the edict which bestowed upon the city the name of New Rome, as well as the rights and privileges of the elder capital.[142] The third street started from the main gate of the palace, and proceeded, first, from the Augustaion to the Forum of Constantine. On reaching the Third Hill it divided into two branches, one leading to the Porta Aurea and the Exokionion, the other to the Church of the Holy Apostles and the Gate of the Polyandrion. This was the main artery of the city, and was named the Mesè (Μεσὴ) on account of its central position. Porticoes built by Eubulus, one of the senators who accompanied Constantine from Rome, lined both sides of the Mesè, and one side of the two other streets, adding at once to the convenience and beauty of the thoroughfares. The porticoes extending from the Augustaion to the Forum of Constantine were particularly handsome.[143] Upon the summit of all the porticoes walks or terraces were laid out, adorned with countless statues, and commanding views of the city and of the surrounding hills and waters. Thus, the street scenery of Constantinople combined the attractions of Art and Nature.