Line D (Rome Metro)
Line D was a proposed line of the Rome Metro system, whose project was shut down in 2012.
The line was supposed to run from south-eastern Rome, pass through the city centre and reach the northern part.
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Wikipedia
Line D was a proposed line of the Rome Metro system, whose project was shut down in 2012.
The line was supposed to run from south-eastern Rome, pass through the city centre and reach the northern part.