For the metro, which way do you go?
me-tro-po-li-TA-na — stress on fourth syllable. Five syllables. Often shortened to metro.
Ask when you are above ground and need directions to the nearest metro entrance in a city like Rome or Milan.
Per la metropolitana (for the metro) — per expresses destination purpose. Da che parte (which way / on which side) — an alternative to dove (where) that emphasises direction. Si va (does one go) — impersonal reflexive of andare.
Dov'è l'ingresso della metro?
Where is the metro entrance?
Ingresso (entrance) — asking for the physical entrance
Quale linea devo prendere per andare al centro?
Which line should I take to go to the centre?
Linea (line) — Rome has A and B, Milan has multiple lines
C'è una fermata della metro qui vicino?
Is there a metro stop near here?
Fermata (stop) — asking whether the metro serves this area
Rome's metro network is limited (only lines A and B plus a short C line) due to the impossibility of digging without hitting ancient ruins — every tunnel becomes an archaeological excavation.