At Heroes' Square opposite the Palace of Exhibitions you will find the Museum of Fine Arts . It houses Hungary's best art collection, rich in Flemish and Dutch old masters.
Open: Tues.-Sun. 10-5:30
This time here was Dürer exhibition. There I have seen at least one Finnish picture, "Boy and Bird".
While in the City Park (especially in bad weather as I had!), this formidable museum, housing Hungary's biggest collection of foreign art, is well worth a visit.