The Museum of Fine Arts is definitely the leading classic fine arts museum in Budapest, Hungary. Its Roman, Egyptian, Renaissance, Baroque artworks are some of the best in Europe from international artists from Spain, Italy, etc.
Christmas opening hours at the Budapest Museum of Fine Arts (Szepmuveszeti Muzeum):
Dec 24 Closed
Dec 25 Closed
Dec 26 Open
Dec 27 – 30 as on regular days depending on which calendar day comes
Dec 31, New Year’s Eve: Closed (most museums in Budapest are closed on New Year’s Eve)
January 1, New Year’s Day: Open from noon (12pm)