The Hungarian National Museum was founded in 1802 and is the national museum for the history, art and archaeology of Hungary, including areas not within Hungary’s modern borders such as Transylvania; it is not to be confused with the collection of international art of the Hungarian National Gallery. The museum is in Budapest VIII in a purpose-built Neoclassical building from 1837–47 by the architect Mihály Pollack.

More details: https://en.wikipedia.org/wiki/Hungarian_National_Museum