Viking trade networks were vast, spanning Europe, the Middle East, and parts of Asia. Key routes included maritime paths across the Baltic Sea, North Sea, and Atlantic Ocean, as well as overland routes connecting Scandinavia with the Byzantine Empire and Islamic world. Major trade centers like Hedeby, Birka, and Dublin facilitated the exchange of goods such as furs, amber, honey, and slaves. Vikings used silver coins, hacksilver, and barter systems for transactions. Archaeological evidence, including imported luxury items and silver hoards, reveals the extent of their trade connections.