Prague is as safe as any European capital, but pickpockets can be a problem. There's no need to be paranoid, but keep valuables well out of reach, and be alert in crowds and on public transport.
Prime pickpocket spots are Prague Castle (especially at the changing of the guard), Charles Bridge, Old Town Square (in the crowd watching the Astronomical Clock), the entrance to the Old Jewish Cemetery and Wenceslas Square.
Carry shoulder bags or backpacks in front of you on crowded trams (especially trams 9 and 22), metro carriages and escalators.
At night, avoid the seedy park in front of the main train station, which attracts a lot of vagrants, and the upper part of Wenceslas Square, which becomes effectively a red-light district at night.
Taxi rip-offs are an occasional problem, especially among drivers who congregate in popular tourist areas like Old Town Square and Wenceslas Square. The usual tactic is to quote an inflated fare upon arriving at the destination and then refuse to budge when you complain that it seems high. Ask the driver in advance for an approximate fare, and if it feels too high, don't get in. Also, avoid unmarked cabs (ie those that aren't obviously part of a reputable firm).
Public toilets are free in state-run museums, galleries and concert halls. Elsewhere, such as at train, bus and metro stations, public toilets are staffed by attendants who charge 5Kč to 10Kč. Men’s are marked muži or páni, and women’s ženy or dámy.In the main tourist areas of Prague, there are...