For most Romans it seemed that the Metro C line would never be finished. It seemed that the more they dug to create the new line, the more artifacts they found. As a result the construction would have to stop and let the archaeologists in to excavate the site. It took years longer than thought but as a result Rome now has a new line with an added bonus, which is a museum with artifacts that was found while constructing a new line. The artifacts are impressive find and add an extra bonus for travelers of the line.
To read more at – http://www.telegraph.co.uk/news/2017/05/05/rome-unveils-museum-metro-station-packed-hundreds-ancient-artifacts/