Excavation for Rome metro uncovers Roman barracks

Excavation work for a new metro line in Rome has unearthed a huge Roman barracks from the 2nd Century AD when Emperor Hadrian was in power.

The find is so impressive that Italy plans to create Rome's first "archaeological station" at Amba Aradam, on the city's third metro line.

The new station is being built while archaeologists brush dirt away from artefacts and mosaics 9m (30ft) below street level.

The site, thought to have housed Hadrian's Praetorian Guard, includes a 100m hallway with 39 rooms, as this video shows.