This, archaeologists have decided, was built 500 years earlier than the Roman road, by the ancient Greeks.
The discoveries were made during excavations for the port city's new subway system that started in 2006 and four years ago revealed ancient burial grounds containing more than 1000 graves.
Personally the uncovering of delights such as children's board games etched into paving is fine by me, the disturbing of graves is not such a pleasant thought.
Even though progress must be made - and I suppose graves sometimes fall victim to progress - it somehow makes a mockery of the epitaph "Rest in Peace".
Watching the excellent British television documentary Time Team brings similar thoughts to bear.
Front man Tony Robinson, who unfortunately to my mind will always be Baldrick from Blackadder, brings what could be a very dry programme to life, helped by a team of somewhat eccentric archaeologists who become wildly excited over finding scraps of ancient pottery.
The Time Team often turns up other interesting items but I again do not take the same interest in their uncovering of bones in graveyards.
Maybe it's just the way I am but once we pass from this mortal coil I would like to think we can truly Rest in Peace and not to have our remains pored over by others who come along centuries later.