Milan's five metro lines, trams, and buses are run by ATM. A single ticket costs €2.20 and is valid for 90 minutes across all modes. Contactless bank cards are accepted at turnstiles — the system calculates the best fare automatically. The metro runs approximately 5:30 am to 00:30 am daily. The MilanoCard city pass (from €15/day) covers unlimited public transport plus discounts at top attractions — a good value if you plan three or more museum visits in a day. It can be collected 24/7 at Milano Centrale station.