The Madrid Metro (293 km, 302 stations) runs daily 6 AM–1:30 AM and is the fastest way to move around the city. Buy a rechargeable Multi card (€2.50) at any station machine and load a 10-trip ticket or Tourist Travel Pass (1–7 days, from €10.30 for Zone A). The Tourist Pass includes the airport metro supplement at no extra charge — a saving of €3 per journey over single tickets.