Stobi was an ancient town of Paeonia, later conquered by Macedon, and later turned into the capital of the Roman province of Macedonia Salutaris (now near Gradsko in the Republic of Macedonia). It is located on the main road that leads from the Danube to the Aegean Sea and is considered by many to be the most famous archaeological site in the Republic of Macedonia. Stobi was built where the Erigón river (mod. River Crna) joins the Axiós river (mod. Vardar), making it important strategically as a center for both trade and warfare.