Vienna boasts one of the finest public transport systems in Europe. It is safe and easy to use, consisting of punctual buses and trams, a fast U-Bahn (underground), and S-Bahn (railway). Most operate from about 6am to midnight; buses stop earlier but there are night buses on weekends covering the major routes.
The U-Bahn is the fastest way to get around the city, while the S-Bahn is the fastest way to get to the airport. The tram network is one of the largest worldwide and is the next best way of getting about, with the added advantage of being a good way to see the city, although some lines don't operate on weekends. Buses are useful in the inner city where there are no trams.
Fares are standard for all forms of public transport, and once validated will allow one journey including transfers in the same direction. Travel passes are available: the Vienna Card is valid for three days, allows unlimited travel on public transport, and offers discounts at many attractions, shops and restaurants.
Taxis are plentiful, reliable and metered, but have a list of surcharges and are among the most expensive in Europe. The most romantic, if expensive, way to get about is by horse-drawn carriage, or fiaker. A car is generally a burden in Vienna, but can be useful for trips outside the city.