Choose the Leopold for Austrian modern art or Kunsthistorisches for old masters; standard winter hours around 10:00–18:00, but check individual museum times.
Visit the unique Medieval Crime Museum or the year-round Christmas shops at Käthe Wohlfahrt; check opening hours (Christmas museum often open daily winter).
Central square with historical houses; enjoy museum views along the river and prepare for New Year's Eve festivities (public celebrations often center along the Main).