Did archaeologists unearth the oldest known Roman temple?

Archaeologists digging in central Rome say they've found what could be the oldest known Roman temple: the temple of Fortuna.

It's believed to have been built around the 7th century BC for the goddess of Fortuna.

The dig has been challenging for the team as the temple is located more than 7 feet below the water line. They dug a hole about 15 feet deep and stabilized the walls of the hole with metal sheeting.

One of the researchers working on the Sant'Ombono project told NPR they were only able to keep the hole open for three days because they feared it could collapse on them.

The team, made up of researchers from the University of Michigan, University of Calabria and Rome archeology officials, have been excavating since 2009. Along the way, they've been uncovering new ideas about ancient Rome.

They say that ancient Rome wasn't as enduring as we thought.

They believe one way the Romans altered their cities was by leveling hilltops and filling valleys to flatten the terrain. They say the river near the temple of Fortuna was also likely diverted by the Romans to make the temple a harbor temple.