Visitors do not need complicated route planning. Use the metro for a few strategic jumps, and keep the rest of the day walkable. This guide focuses on the practical points that reduce friction: the four lines, tickets, validation, and a simple ride strategy.
Bucharest's metro is compact and colour-coded, so it is easy to read once you know the four lines. For most sightseeing you will lean on M2, the north–south spine through the central squares.
✦The original loop-shaped line, opened in 1979, circling much of the inner city. It links Gara de Nord (the main railway station and airport-train arrival point) with key interchanges, so it is the line you often meet first when arriving by train.
✦The north–south spine and the most useful single line for visitors. It runs through the centre via Piața Victoriei, Piața Romană, Universitate, Piața Unirii and Tineretului — covering the Old Town edge, museum cluster and major squares in one straight run.
✦An east–west line serving residential districts and connecting through to the centre. Handy for reaching the western and eastern reaches of the city and for some hotel areas away from the core.
✦A shorter northern line running from Gara de Nord toward the north of the city. Useful mainly for specific journeys rather than central sightseeing.
The center is walkable, but the metro is perfect for getting to parks, museums, and neighborhoods when feet are tired.
Stations are clear and frequent. A basic plan (one or two metro rides per day) often beats complex transit planning.
Weekday peak times can feel crowded. Aim for off-peak rides when possible.
For buses, trams, day passes, and ticket strategies beyond the metro, use the transport overview guide.