Lazienki Park is a beautiful 74 hectacre park containing several palaces, art galleries, and a monument to Frederick Chopin, a native son. On summer Sundays at noon and 4 pm there are free piano recitals on the lawn, which offers a relaxing way to spend an hour or two, followed by a stroll to explore the statues and palaces on the grounds. This is really one of Warsaw's finest sights. Head south on ul. Ujazdowskie, roughly 15-20 minutes walk from the old town area.