Prague’s metro is operated by the Prague Public Transport Authority, which has information desks in both terminals of Prague's Václav Havel airport and in several metro stations, including the Můstek, Anděl, Hradčanská and Nádraží Veleslavín stations. The metro operates daily from 5am to midnight.
The metro has three lines:
Line A (shown on transport maps in green) Links the airport bus to Malá Strana, Old Town Square, Wenceslas Square and Vinohrady.
Line B (Yellow) Cross-river route from Smíchov in the southwest to central Náměstí Republiky and Florenc bus station.
Line C (Red) Links main train station to Florenc bus station, Wenceslas Square and Vyšehrad.
The most useful metro stops for visitors include:
Hlavní nádraží (main train station)
Malostranská (Malá Strana)
Můstek (Wenceslas Square)
Muzeum (National Museum)
Staroměstská (closest to Old Town Square)