The centrepiece of Frognerparken is an extraordinary open-air showcase of work by Norway's best-loved sculptor, Gustav Vigeland, and is home to 214 granite, bronze and iron pieces by the artist. His emotionally charged oeuvre includes entwined lovers, tranquil elderly couples, bawling babies and contempt-ridden beggars. Speaking of bawling babies, his most famous work here, Sinnataggen (The Angry Boy), portrays a child in a mood of particular ill humour.