Archaeologists in Greece's second-largest city have uncovered a 70-metre section of an ancient road built by the Romans that was city's main travel artery nearly 2,000 years ago.

The marble-paved road was unearthed during excavations for Thessaloniki's new underground system, which is due to be completed in four years.

The road in the northern port city will be raised to be put on permanent display when the metro opens in 2016....