Till 5 March the Frans Hals Museum shows eighty works by Dutch masters from the Szépmüvészeti Múzeum in Budapest. An undiscovered gem. It features two portraits by Frans Hals and paintings by Jan Steen, Salomon van Ruysdael, Hendrick Avercamp.In the 17th century, Haarlem was a powerful and prosperous city, not to mention, a centre of arts and culture. The painters of the Golden Age concentrated on everyday subjects: landscapes, genre scenes, portraits, still lifes, and city views.